20928632468692 has 12 divisors (see below), whose sum is σ = 39442422729556. Its totient is φ = 9659368831680.

The previous prime is 20928632468687. The next prime is 20928632468743. The reversal of 20928632468692 is 29686423682902.

It can be written as a sum of positive squares in 2 ways, for example, as 10157134724676 + 10771497744016 = 3187026^2 + 3281996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201236850609 + ... + 201236850712.

Almost surely, 2^{20928632468692} is an apocalyptic number.

It is an amenable number.

20928632468692 is a deficient number, since it is larger than the sum of its proper divisors (18513790260864).

20928632468692 is a wasteful number, since it uses less digits than its factorization.

20928632468692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402473701338 (or 402473701336 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 67.

The spelling of 20928632468692 in words is "twenty trillion, nine hundred twenty-eight billion, six hundred thirty-two million, four hundred sixty-eight thousand, six hundred ninety-two".