928331989638 has 96 divisors (see below), whose sum is σ = 2032429747680. Its totient is φ = 282407731200.

The previous prime is 928331989561. The next prime is 928331989643. The reversal of 928331989638 is 836989133829.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8036998 + ... + 8151686.

It is an arithmetic number, because the mean of its divisors is an integer number (21171143205).

Almost surely, 2^928331989638 is an apocalyptic number.

928331989638 is an abundant number, since it is smaller than the sum of its proper divisors (1104097758042).

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

928331989638 is a wasteful number, since it uses less digits than its factorization.

928331989638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114870 (or 114851 counting only the distinct ones).

The product of its digits is 120932352, while the sum is 69.

The spelling of 928331989638 in words is "nine hundred twenty-eight billion, three hundred thirty-one million, nine hundred eighty-nine thousand, six hundred thirty-eight".