20572928934 has 16 divisors (see below), whose sum is σ = 41509981872. Its totient is φ = 6796955648.

The previous prime is 20572928923. The next prime is 20572928941. The reversal of 20572928934 is 43982927502.

It is a congruent number.

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, 15171099 + ... + 15172454.

It is an arithmetic number, because the mean of its divisors is an integer number (2594373867).

Almost surely, 2^20572928934 is an apocalyptic number.

20572928934 is an abundant number, since it is smaller than the sum of its proper divisors (20937052938).

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

20572928934 is a wasteful number, since it uses less digits than its factorization.

20572928934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343671.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 20572928934 in words is "twenty billion, five hundred seventy-two million, nine hundred twenty-eight thousand, nine hundred thirty-four".