20572928932 has 6 divisors (see below), whose sum is σ = 36002625638. Its totient is φ = 10286464464.

The previous prime is 20572928923. The next prime is 20572928941. The reversal of 20572928932 is 23982927502.

It is an interprime number because it is at equal distance from previous prime (20572928923) and next prime (20572928941).

It can be written as a sum of positive squares in only one way, i.e., 20513114176 + 59814756 = 143224^2 + 7734^2 .

It is a super-2 number, since 2×20572928932² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571616113 + ... + 2571616120.

Almost surely, 2^20572928932 is an apocalyptic number.

It is an amenable number.

20572928932 is a deficient number, since it is larger than the sum of its proper divisors (15429696706).

20572928932 is a wasteful number, since it uses less digits than its factorization.

20572928932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143232237 (or 5143232235 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 20572928932 in words is "twenty billion, five hundred seventy-two million, nine hundred twenty-eight thousand, nine hundred thirty-two".