20748875472 has 60 divisors (see below), whose sum is σ = 62534810884. Its totient is φ = 6384268800.

The previous prime is 20748875467. The next prime is 20748875489. The reversal of 20748875472 is 27457884702.

20748875472 is a `hidden beast` number, since 20 + 7 + 4 + 88 + 75 + 472 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6412165776 + 14336709696 = 80076^2 + 119736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5540029 + ... + 5543772.

Almost surely, 2^20748875472 is an apocalyptic number.

It is an amenable number.

20748875472 is an abundant number, since it is smaller than the sum of its proper divisors (41785935412).

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

20748875472 is a wasteful number, since it uses less digits than its factorization.

20748875472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11083828 (or 11083819 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 54.

The spelling of 20748875472 in words is "twenty billion, seven hundred forty-eight million, eight hundred seventy-five thousand, four hundred seventy-two".