399027308916 has 24 divisors (see below), whose sum is σ = 931383865440. Its totient is φ = 132963368032.

The previous prime is 399027308843. The next prime is 399027308941. The reversal of 399027308916 is 619803720993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5680506 + ... + 5750321.

It is an arithmetic number, because the mean of its divisors is an integer number (38807661060).

Almost surely, 2^399027308916 is an apocalyptic number.

It is an amenable number.

399027308916 is an abundant number, since it is smaller than the sum of its proper divisors (532356556524).

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

399027308916 is a wasteful number, since it uses less digits than its factorization.

399027308916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433743 (or 11433741 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 399027308916 in words is "three hundred ninety-nine billion, twenty-seven million, three hundred eight thousand, nine hundred sixteen".