399155589888 has 108 divisors (see below), whose sum is σ = 1167691876344. Its totient is φ = 120956211200.

The previous prime is 399155589829. The next prime is 399155589923. The reversal of 399155589888 is 888985551993.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2054733 + ... + 2240588.

It is an arithmetic number, because the mean of its divisors is an integer number (10811961818).

Almost surely, 2^399155589888 is an apocalyptic number.

It is an amenable number.

399155589888 is an abundant number, since it is smaller than the sum of its proper divisors (768536286456).

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

399155589888 is a wasteful number, since it uses less digits than its factorization.

399155589888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295362 (or 4295337 counting only the distinct ones).

The product of its digits is 1119744000, while the sum is 78.

The spelling of 399155589888 in words is "three hundred ninety-nine billion, one hundred fifty-five million, five hundred eighty-nine thousand, eight hundred eighty-eight".