123992807888 has 20 divisors (see below), whose sum is σ = 240373632960. Its totient is φ = 61960902624.

The previous prime is 123992807867. The next prime is 123992807891. The reversal of 123992807888 is 888708299321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2190008 + ... + 2245911.

It is an arithmetic number, because the mean of its divisors is an integer number (12018681648).

Almost surely, 2^123992807888 is an apocalyptic number.

It is an amenable number.

123992807888 is a deficient number, since it is larger than the sum of its proper divisors (116380825072).

123992807888 is a wasteful number, since it uses less digits than its factorization.

123992807888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437674 (or 4437668 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 65.

The spelling of 123992807888 in words is "one hundred twenty-three billion, nine hundred ninety-two million, eight hundred seven thousand, eight hundred eighty-eight".