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68797071359999 = 3743673736012879
BaseRepresentation
bin11111010010010000100001…
…11111111111111111111111
3100000120221021012011022222222
433221020100333333333333
533004132400232004444
6402152534355555555
720330265363633653
oct1751102077777777
9300527235138888
1068797071359999
111aa147462794a4
1278713bbbbbbbb
132c506c7761328
1412dbb203cca63
157e4882b5eeee
hex3e9210ffffff

68797071359999 has 64 divisors (see below), whose sum is σ = 73723469783040. Its totient is φ = 64103347123200.

The previous prime is 68797071359971. The next prime is 68797071360049. The reversal of 68797071359999 is 99995317079786.

It is a Cunningham number, because it is equal to 28804-1.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68797071359999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68797071359969) 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, 23896167842 + ... + 23896170720.

It is an arithmetic number, because the mean of its divisors is an integer number (1151929215360).

Almost surely, 268797071359999 is an apocalyptic number.

68797071359999 is a deficient number, since it is larger than the sum of its proper divisors (4926398423041).

68797071359999 is a wasteful number, since it uses less digits than its factorization.

68797071359999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000.

The product of its (nonzero) digits is 14582741040, while the sum is 89.

The spelling of 68797071359999 in words is "sixty-eight trillion, seven hundred ninety-seven billion, seventy-one million, three hundred fifty-nine thousand, nine hundred ninety-nine".

Divisors: 1 37 43 67 373 601 1591 2479 2879 2881 13801 16039 22237 24991 25843 40267 106523 106597 123797 192893 224173 593443 924667 956191 1073867 1074613 1489879 1730279 1731481 4580489 7137041 8294399 8294401 9639439 15019591 39733079 39760681 46176281 64020323 64064797 71949089 74401997 115928693 306892763 356659243 555724867 645394067 645842413 1708522397 2662116293 2752873889 3093810827 4289361641 4984933799 23879580479 23896169281 27751944881 43241402489 114471000599 184442550563 1026821960597 1599931892093 1859380307027 68797071359999