264870938864 has 40 divisors (see below), whose sum is σ = 586583036640. Its totient is φ = 113500032768.

The previous prime is 264870938831. The next prime is 264870938869. The reversal of 264870938864 is 468839078462.

It is a super-2 number, since 2×264870938864² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264870938864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264870938869) 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, 643922 + ... + 971790.

It is an arithmetic number, because the mean of its divisors is an integer number (14664575916).

Almost surely, 2^264870938864 is an apocalyptic number.

It is an amenable number.

264870938864 is an abundant number, since it is smaller than the sum of its proper divisors (321712097776).

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

264870938864 is a wasteful number, since it uses less digits than its factorization.

264870938864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335097 (or 335091 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 65.

The spelling of 264870938864 in words is "two hundred sixty-four billion, eight hundred seventy million, nine hundred thirty-eight thousand, eight hundred sixty-four".