623240172872 has 48 divisors (see below), whose sum is σ = 1179763662060. Its totient is φ = 308663986176.

The previous prime is 623240172869. The next prime is 623240172923. The reversal of 623240172872 is 278271042326.

It can be written as a sum of positive squares in 2 ways, for example, as 604496920036 + 18743252836 = 777494^2 + 136906^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 86834948 + ... + 86842124.

Almost surely, 2^623240172872 is an apocalyptic number.

It is an amenable number.

623240172872 is a deficient number, since it is larger than the sum of its proper divisors (556523489188).

623240172872 is a wasteful number, since it uses less digits than its factorization.

623240172872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8110 (or 7979 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 623240172872 in words is "six hundred twenty-three billion, two hundred forty million, one hundred seventy-two thousand, eight hundred seventy-two".