13277568956 has 24 divisors (see below), whose sum is σ = 25396189056. Its totient is φ = 6046709760.

The previous prime is 13277568943. The next prime is 13277569001. The reversal of 13277568956 is 65986577231.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13277568895 and 13277568904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3147221 + ... + 3151436.

It is an arithmetic number, because the mean of its divisors is an integer number (1058174544).

Almost surely, 2^13277568956 is an apocalyptic number.

It is an amenable number.

13277568956 is a deficient number, since it is larger than the sum of its proper divisors (12118620100).

13277568956 is a wasteful number, since it uses less digits than its factorization.

13277568956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298709 (or 6298707 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 59.

The spelling of 13277568956 in words is "thirteen billion, two hundred seventy-seven million, five hundred sixty-eight thousand, nine hundred fifty-six".