13256938755 has 12 divisors (see below), whose sum is σ = 22978693920. Its totient is φ = 7070367312.

The previous prime is 13256938753. The next prime is 13256938771. The reversal of 13256938755 is 55783965231.

13256938755 is a `hidden beast` number, since 1 + 3 + 2 + 569 + 3 + 8 + 75 + 5 = 666.

It is not a de Polignac number, because 13256938755 - 2¹ = 13256938753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13256938753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147299275 + ... + 147299364.

It is an arithmetic number, because the mean of its divisors is an integer number (1914891160).

Almost surely, 2^13256938755 is an apocalyptic number.

13256938755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13256938755 is a deficient number, since it is larger than the sum of its proper divisors (9721755165).

13256938755 is a wasteful number, since it uses less digits than its factorization.

13256938755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294598650 (or 294598647 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The spelling of 13256938755 in words is "thirteen billion, two hundred fifty-six million, nine hundred thirty-eight thousand, seven hundred fifty-five".