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86749446624673 = 71929139443365257
BaseRepresentation
bin10011101110010111101101…
…111100110101010110100001
3102101011011111002102202122111
4103232113231330311112201
542332300331313442143
6504300051241435321
724162304104620620
oct2356275574652641
9371134432382574
1086749446624673
1125706263080158
12989075a19bb41
13395358c879031
14175c9a4acb6b7
15a0684396099d
hex4ee5edf355a1

86749446624673 has 64 divisors (see below), whose sum is σ = 108981298944000. Its totient is φ = 67372164647424.

The previous prime is 86749446624619. The next prime is 86749446624703. The reversal of 86749446624673 is 37642664494768.

It is a happy number.

It is not a de Polignac number, because 86749446624673 - 29 = 86749446624161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86749446624673.

It is not an unprimeable number, because it can be changed into a prime (86749446604673) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 237319861 + ... + 237685117.

It is an arithmetic number, because the mean of its divisors is an integer number (1702832796000).

Almost surely, 286749446624673 is an apocalyptic number.

It is an amenable number.

86749446624673 is a deficient number, since it is larger than the sum of its proper divisors (22231852319327).

86749446624673 is a wasteful number, since it uses less digits than its factorization.

86749446624673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365894.

The product of its digits is 7023034368, while the sum is 76.

The spelling of 86749446624673 in words is "eighty-six trillion, seven hundred forty-nine billion, four hundred forty-six million, six hundred twenty-four thousand, six hundred seventy-three".

Divisors: 1 7 19 29 133 139 203 443 551 973 2641 3101 3857 4031 8417 12847 18487 28217 58919 61577 76589 89929 244093 365257 431039 536123 1169963 1708651 1785733 2556799 6939883 8189741 10592453 12500131 33928927 48579181 50770723 74147171 161808851 201256607 237502489 355395061 964643737 1132661957 1408796249 1472350967 3074368169 4692456679 6752506159 10306456769 21520577183 22491430289 27974668373 32847196753 89156676901 157440012023 195822678611 427337175491 624096738307 652251478381 2991360228437 4565760348667 12392778089239 86749446624673