13088774856 has 32 divisors (see below), whose sum is σ = 33850281600. Its totient is φ = 4212479040.

The previous prime is 13088774843. The next prime is 13088774857. The reversal of 13088774856 is 65847788031.

It is a junction number, because it is equal to n+sod(n) for n = 13088774796 and 13088774805.

It is not an unprimeable number, because it can be changed into a prime (13088774857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9402160 + ... + 9403551.

It is an arithmetic number, because the mean of its divisors is an integer number (1057821300).

Almost surely, 2^13088774856 is an apocalyptic number.

It is an amenable number.

13088774856 is an abundant number, since it is smaller than the sum of its proper divisors (20761506744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13088774856 is a wasteful number, since it uses less digits than its factorization.

13088774856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18805749 (or 18805745 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 13088774856 in words is "thirteen billion, eighty-eight million, seven hundred seventy-four thousand, eight hundred fifty-six".