21472708932 has 60 divisors (see below), whose sum is σ = 57439379536. Its totient is φ = 6991110000.

The previous prime is 21472708927. The next prime is 21472708937. The reversal of 21472708932 is 23980727412.

21472708932 is a `hidden beast` number, since 2 + 1 + 472 + 70 + 89 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (21472708927) and next prime (21472708937).

It is a super-2 number, since 2×21472708932² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21472708937) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 756694 + ... + 784557.

Almost surely, 2^21472708932 is an apocalyptic number.

It is an amenable number.

21472708932 is an abundant number, since it is smaller than the sum of its proper divisors (35966670604).

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

21472708932 is a wasteful number, since it uses less digits than its factorization.

21472708932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541310 (or 1541299 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 21472708932 in words is "twenty-one billion, four hundred seventy-two million, seven hundred eight thousand, nine hundred thirty-two".