21192371073732 has 96 divisors (see below), whose sum is σ = 50659070571648. Its totient is φ = 6891633874944.

The previous prime is 21192371073721. The next prime is 21192371073763. The reversal of 21192371073732 is 23737017329112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1674882718 + ... + 1674895370.

It is an arithmetic number, because the mean of its divisors is an integer number (527698651788).

Almost surely, 2^{21192371073732} is an apocalyptic number.

It is an amenable number.

21192371073732 is an abundant number, since it is smaller than the sum of its proper divisors (29466699497916).

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

21192371073732 is a wasteful number, since it uses less digits than its factorization.

21192371073732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16309 (or 16307 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 48.

The spelling of 21192371073732 in words is "twenty-one trillion, one hundred ninety-two billion, three hundred seventy-one million, seventy-three thousand, seven hundred thirty-two".