21012376592 has 20 divisors (see below), whose sum is σ = 40894049280. Its totient is φ = 10459073568.

The previous prime is 21012376577. The next prime is 21012376597. The reversal of 21012376592 is 29567321012.

It is not an unprimeable number, because it can be changed into a prime (21012376597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2940992 + ... + 2948127.

It is an arithmetic number, because the mean of its divisors is an integer number (2044702464).

Almost surely, 2^21012376592 is an apocalyptic number.

It is an amenable number.

21012376592 is a deficient number, since it is larger than the sum of its proper divisors (19881672688).

21012376592 is a wasteful number, since it uses less digits than its factorization.

21012376592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889350 (or 5889344 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 21012376592 in words is "twenty-one billion, twelve million, three hundred seventy-six thousand, five hundred ninety-two".