13291978941604 has 48 divisors (see below), whose sum is σ = 26905648331520. Its totient is φ = 5678499100160.

The previous prime is 13291978941569. The next prime is 13291978941641. The reversal of 13291978941604 is 40614987919231.

It is a happy number.

13291978941604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11819647 + ... + 12895270.

It is an arithmetic number, because the mean of its divisors is an integer number (560534340240).

Almost surely, 2^{13291978941604} is an apocalyptic number.

It is an amenable number.

13291978941604 is an abundant number, since it is smaller than the sum of its proper divisors (13613669389916).

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

13291978941604 is a wasteful number, since it uses less digits than its factorization.

13291978941604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24715668 (or 24715666 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 13291978941604 in words is "thirteen trillion, two hundred ninety-one billion, nine hundred seventy-eight million, nine hundred forty-one thousand, six hundred four".