123988613832 has 24 divisors (see below), whose sum is σ = 335802495990. Its totient is φ = 41329537920.

The previous prime is 123988613821. The next prime is 123988613849. The reversal of 123988613832 is 238316889321.

123988613832 is a `hidden beast` number, since 12 + 3 + 9 + 8 + 8 + 613 + 8 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102729224196 + 21259389636 = 320514^2 + 145806^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 861031969 + ... + 861032112.

Almost surely, 2^123988613832 is an apocalyptic number.

123988613832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123988613832 is an abundant number, since it is smaller than the sum of its proper divisors (211813882158).

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

123988613832 is a wasteful number, since it uses less digits than its factorization.

123988613832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722064093 (or 1722064086 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 123988613832 in words is "one hundred twenty-three billion, nine hundred eighty-eight million, six hundred thirteen thousand, eight hundred thirty-two".