264918991372 has 36 divisors (see below), whose sum is σ = 541397919384. Its totient is φ = 113094912000.

The previous prime is 264918991369. The next prime is 264918991397. The reversal of 264918991372 is 273199819462.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 264918991372.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2579254 + ... + 2679997.

It is an arithmetic number, because the mean of its divisors is an integer number (15038831094).

Almost surely, 2^264918991372 is an apocalyptic number.

It is an amenable number.

264918991372 is an abundant number, since it is smaller than the sum of its proper divisors (276478928012).

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

264918991372 is a wasteful number, since it uses less digits than its factorization.

264918991372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5259526 (or 5259517 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The spelling of 264918991372 in words is "two hundred sixty-four billion, nine hundred eighteen million, nine hundred ninety-one thousand, three hundred seventy-two".