13078772368 has 40 divisors (see below), whose sum is σ = 26094329856. Its totient is φ = 6346425600.

The previous prime is 13078772363. The next prime is 13078772449. The reversal of 13078772368 is 86327787031.

It is not an unprimeable number, because it can be changed into a prime (13078772363) 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, 73105 + ... + 177487.

Almost surely, 2^13078772368 is an apocalyptic number.

It is an amenable number.

13078772368 is a deficient number, since it is larger than the sum of its proper divisors (13015557488).

13078772368 is a wasteful number, since it uses less digits than its factorization.

13078772368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104623 (or 104617 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 13078772368 in words is "thirteen billion, seventy-eight million, seven hundred seventy-two thousand, three hundred sixty-eight".