21012433199632 has 40 divisors (see below), whose sum is σ = 46540205914752. Its totient is φ = 9002875238400.

The previous prime is 21012433199629. The next prime is 21012433199663. The reversal of 21012433199632 is 23699133421012.

It is a hoax number, since the sum of its digits (46) 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 7 ways as a sum of consecutive naturals, for example, 25141969 + ... + 25964272.

Almost surely, 2^{21012433199632} is an apocalyptic number.

It is an amenable number.

21012433199632 is an abundant number, since it is smaller than the sum of its proper divisors (25527772715120).

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

21012433199632 is a wasteful number, since it uses less digits than its factorization.

21012433199632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51109927 (or 51109921 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 21012433199632 in words is "twenty-one trillion, twelve billion, four hundred thirty-three million, one hundred ninety-nine thousand, six hundred thirty-two".