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26861482747 = 1118133134669
BaseRepresentation
bin11001000001000100…
…011011001011111011
32120100000121201002101
4121001010123023323
5420003014421442
620201234444231
71640436556531
oct310104331373
976300551071
1026861482747
1110434674620
125257a33677
1326c10a23b8
14142b6a6151
15a73322cb7
hex64111b2fb

26861482747 has 8 divisors (see below), whose sum is σ = 29305269360. Its totient is φ = 24418001760.

The previous prime is 26861482607. The next prime is 26861482759. The reversal of 26861482747 is 74728416862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26861482747 - 211 = 26861480699 is a prime.

It is a super-4 number, since 4×268614827474 (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26861482787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132129 + ... + 266797.

It is an arithmetic number, because the mean of its divisors is an integer number (3663158670).

Almost surely, 226861482747 is an apocalyptic number.

26861482747 is a deficient number, since it is larger than the sum of its proper divisors (2443786613).

26861482747 is a wasteful number, since it uses less digits than its factorization.

26861482747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152813.

The product of its digits is 7225344, while the sum is 55.

The spelling of 26861482747 in words is "twenty-six billion, eight hundred sixty-one million, four hundred eighty-two thousand, seven hundred forty-seven".

Divisors: 1 11 18133 134669 199463 1481359 2441952977 26861482747