389917992894 has 32 divisors (see below), whose sum is σ = 822264410880. Its totient is φ = 122924333952.

The previous prime is 389917992859. The next prime is 389917992949. The reversal of 389917992894 is 498299719983.

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 15 ways as a sum of consecutive naturals, for example, 2816322 + ... + 2951525.

It is an arithmetic number, because the mean of its divisors is an integer number (25695762840).

Almost surely, 2^389917992894 is an apocalyptic number.

389917992894 is an abundant number, since it is smaller than the sum of its proper divisors (432346417986).

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

389917992894 is a wasteful number, since it uses less digits than its factorization.

389917992894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768464.

The product of its digits is 634894848, while the sum is 78.

The spelling of 389917992894 in words is "three hundred eighty-nine billion, nine hundred seventeen million, nine hundred ninety-two thousand, eight hundred ninety-four".