30923343872 has 24 divisors (see below), whose sum is σ = 61831592550. Its totient is φ = 15461670912.

The previous prime is 30923343863. The next prime is 30923343901. The reversal of 30923343872 is 27834332903.

It can be written as a sum of positive squares in only one way, i.e., 28731606016 + 2191737856 = 169504^2 + 46816^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7547597 + ... + 7551692.

Almost surely, 2^30923343872 is an apocalyptic number.

30923343872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30923343872 is a deficient number, since it is larger than the sum of its proper divisors (30908248678).

30923343872 is an equidigital number, since it uses as much as digits as its factorization.

30923343872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15099311 (or 15099291 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 44.

The spelling of 30923343872 in words is "thirty billion, nine hundred twenty-three million, three hundred forty-three thousand, eight hundred seventy-two".