21464679164592 has 40 divisors (see below), whose sum is σ = 56802870477360. Its totient is φ = 6980383467520.

The previous prime is 21464679164561. The next prime is 21464679164609. The reversal of 21464679164592 is 29546197646412.

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, 5453422617 + ... + 5453426552.

It is an arithmetic number, because the mean of its divisors is an integer number (1420071761934).

Almost surely, 2^{21464679164592} is an apocalyptic number.

It is an amenable number.

21464679164592 is an abundant number, since it is smaller than the sum of its proper divisors (35338191312768).

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

21464679164592 is a wasteful number, since it uses less digits than its factorization.

21464679164592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10906849221 (or 10906849215 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 21464679164592 in words is "twenty-one trillion, four hundred sixty-four billion, six hundred seventy-nine million, one hundred sixty-four thousand, five hundred ninety-two".