13195976768 has 56 divisors (see below), whose sum is σ = 28662462360. Its totient is φ = 5990584320.

The previous prime is 13195976753. The next prime is 13195976771. The reversal of 13195976768 is 86767959131.

It can be written as a sum of positive squares in 4 ways, for example, as 1910738944 + 11285237824 = 43712^2 + 106232^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13195976768.

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, 79253 + ... + 180756.

It is an arithmetic number, because the mean of its divisors is an integer number (511829685).

Almost surely, 2^13195976768 is an apocalyptic number.

It is an amenable number.

13195976768 is an abundant number, since it is smaller than the sum of its proper divisors (15466485592).

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

13195976768 is a wasteful number, since it uses less digits than its factorization.

13195976768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260095 (or 260085 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 62.

The spelling of 13195976768 in words is "thirteen billion, one hundred ninety-five million, nine hundred seventy-six thousand, seven hundred sixty-eight".