399027916933968 has 40 divisors (see below), whose sum is σ = 1178082421425088. Its totient is φ = 114007976266752.

The previous prime is 399027916933949. The next prime is 399027916934047. The reversal of 399027916933968 is 869339619720993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (84).

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, 593791542721 + ... + 593791543392.

Almost surely, 2^{399027916933968} is an apocalyptic number.

It is an amenable number.

399027916933968 is an abundant number, since it is smaller than the sum of its proper divisors (779054504491120).

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

399027916933968 is a wasteful number, since it uses less digits than its factorization.

399027916933968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187583086131 (or 1187583086125 counting only the distinct ones).

The product of its (nonzero) digits is 6428310336, while the sum is 84.

The spelling of 399027916933968 in words is "three hundred ninety-nine trillion, twenty-seven billion, nine hundred sixteen million, nine hundred thirty-three thousand, nine hundred sixty-eight".