390310869816 has 96 divisors (see below), whose sum is σ = 1208327459040. Its totient is φ = 111496863744.

The previous prime is 390310869803. The next prime is 390310869937. The reversal of 390310869816 is 618968013093.

390310869816 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2782680 + ... + 2919576.

It is an arithmetic number, because the mean of its divisors is an integer number (12586744365).

Almost surely, 2^390310869816 is an apocalyptic number.

390310869816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

390310869816 is an abundant number, since it is smaller than the sum of its proper divisors (818016589224).

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

390310869816 is a wasteful number, since it uses less digits than its factorization.

390310869816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142573 (or 142566 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 390310869816 in words is "three hundred ninety billion, three hundred ten million, eight hundred sixty-nine thousand, eight hundred sixteen".