13195976788 has 24 divisors (see below), whose sum is σ = 23516317440. Its totient is φ = 6477807840.

The previous prime is 13195976771. The next prime is 13195976789. The reversal of 13195976788 is 88767959131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13195976789) 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, 29331 + ... + 165082.

It is an arithmetic number, because the mean of its divisors is an integer number (979846560).

Almost surely, 2^13195976788 is an apocalyptic number.

It is an amenable number.

13195976788 is a deficient number, since it is larger than the sum of its proper divisors (10320340652).

13195976788 is a wasteful number, since it uses less digits than its factorization.

13195976788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194727 (or 194725 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 64.

The spelling of 13195976788 in words is "thirteen billion, one hundred ninety-five million, nine hundred seventy-six thousand, seven hundred eighty-eight".