389803078986 has 16 divisors (see below), whose sum is σ = 782639648064. Its totient is φ = 129428777984.

The previous prime is 389803078967. The next prime is 389803078999. The reversal of 389803078986 is 689870308983.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 389803078986.

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, 126393750 + ... + 126396833.

It is an arithmetic number, because the mean of its divisors is an integer number (48914978004).

Almost surely, 2^389803078986 is an apocalyptic number.

389803078986 is an abundant number, since it is smaller than the sum of its proper divisors (392836569078).

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

389803078986 is a wasteful number, since it uses less digits than its factorization.

389803078986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252790845.

The product of its (nonzero) digits is 125411328, while the sum is 69.

The spelling of 389803078986 in words is "three hundred eighty-nine billion, eight hundred three million, seventy-eight thousand, nine hundred eighty-six".