389620959918 has 16 divisors (see below), whose sum is σ = 800302512720. Its totient is φ = 126363554496.

The previous prime is 389620959901. The next prime is 389620959943. The reversal of 389620959918 is 819959026983.

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, 877524463 + ... + 877524906.

It is an arithmetic number, because the mean of its divisors is an integer number (50018907045).

Almost surely, 2^389620959918 is an apocalyptic number.

389620959918 is an abundant number, since it is smaller than the sum of its proper divisors (410681552802).

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

389620959918 is a wasteful number, since it uses less digits than its factorization.

389620959918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755049411.

The product of its (nonzero) digits is 75582720, while the sum is 69.

The spelling of 389620959918 in words is "three hundred eighty-nine billion, six hundred twenty million, nine hundred fifty-nine thousand, nine hundred eighteen".