390918949163 has 16 divisors (see below), whose sum is σ = 395512968000. Its totient is φ = 386353843200.

The previous prime is 390918949139. The next prime is 390918949189. The reversal of 390918949163 is 361949819093.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390918949163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390918949096 and 390918949105.

It is not an unprimeable number, because it can be changed into a prime (390918949133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60613763 + ... + 60620211.

It is an arithmetic number, because the mean of its divisors is an integer number (24719560500).

Almost surely, 2^390918949163 is an apocalyptic number.

390918949163 is a deficient number, since it is larger than the sum of its proper divisors (4594018837).

390918949163 is a wasteful number, since it uses less digits than its factorization.

390918949163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The spelling of 390918949163 in words is "three hundred ninety billion, nine hundred eighteen million, nine hundred forty-nine thousand, one hundred sixty-three".