390890810163 has 32 divisors (see below), whose sum is σ = 615851376640. Its totient is φ = 215811384480.

The previous prime is 390890810153. The next prime is 390890810213. The reversal of 390890810163 is 361018098093.

It is not a de Polignac number, because 390890810163 - 2³³ = 382300875571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390890810113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82045 + ... + 887982.

It is an arithmetic number, because the mean of its divisors is an integer number (19245355520).

Almost surely, 2^390890810163 is an apocalyptic number.

390890810163 is a deficient number, since it is larger than the sum of its proper divisors (224960566477).

390890810163 is a wasteful number, since it uses less digits than its factorization.

390890810163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970687.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 390890810163 in words is "three hundred ninety billion, eight hundred ninety million, eight hundred ten thousand, one hundred sixty-three".