21929227500396 has 24 divisors (see below), whose sum is σ = 51169498179184. Its totient is φ = 7309556688960.

The previous prime is 21929227500377. The next prime is 21929227500497. The reversal of 21929227500396 is 69300572292912.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its 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, 22734235 + ... + 23679186.

Almost surely, 2^{21929227500396} is an apocalyptic number.

It is an amenable number.

21929227500396 is an abundant number, since it is smaller than the sum of its proper divisors (29240270678788).

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

21929227500396 is a wasteful number, since it uses less digits than its factorization.

21929227500396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46452801 (or 46452799 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 21929227500396 in words is "twenty-one trillion, nine hundred twenty-nine billion, two hundred twenty-seven million, five hundred thousand, three hundred ninety-six".