30732164432 has 20 divisors (see below), whose sum is σ = 61596796020. Its totient is φ = 14836217088.

The previous prime is 30732164431. The next prime is 30732164473. The reversal of 30732164432 is 23446123703.

It can be written as a sum of positive squares in 2 ways, for example, as 6303724816 + 24428439616 = 79396^2 + 156296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30732164392 and 30732164401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30732164431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33116093 + ... + 33117020.

It is an arithmetic number, because the mean of its divisors is an integer number (3079839801).

Almost surely, 2^30732164432 is an apocalyptic number.

It is an amenable number.

30732164432 is an abundant number, since it is smaller than the sum of its proper divisors (30864631588).

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

30732164432 is a wasteful number, since it uses less digits than its factorization.

30732164432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66233150 (or 66233144 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 30732164432 in words is "thirty billion, seven hundred thirty-two million, one hundred sixty-four thousand, four hundred thirty-two".