390553390676 has 24 divisors (see below), whose sum is σ = 690163865664. Its totient is φ = 193364043840.

The previous prime is 390553390639. The next prime is 390553390687. The reversal of 390553390676 is 676093355093.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5685656 + ... + 5753936.

It is an arithmetic number, because the mean of its divisors is an integer number (28756827736).

Almost surely, 2^390553390676 is an apocalyptic number.

It is an amenable number.

390553390676 is a deficient number, since it is larger than the sum of its proper divisors (299610474988).

390553390676 is a wasteful number, since it uses less digits than its factorization.

390553390676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82271 (or 82269 counting only the distinct ones).

The product of its (nonzero) digits is 13778100, while the sum is 56.

The spelling of 390553390676 in words is "three hundred ninety billion, five hundred fifty-three million, three hundred ninety thousand, six hundred seventy-six".