989928575999 has 16 divisors (see below), whose sum is σ = 1085002321536. Its totient is φ = 895703901600.

The previous prime is 989928575983. The next prime is 989928576037. The reversal of 989928575999 is 999575829989.

It is a cyclic number.

It is not a de Polignac number, because 989928575999 - 2⁴ = 989928575983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989928575099) 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, 8584844 + ... + 8699390.

It is an arithmetic number, because the mean of its divisors is an integer number (67812645096).

Almost surely, 2^989928575999 is an apocalyptic number.

989928575999 is a deficient number, since it is larger than the sum of its proper divisors (95073745537).

989928575999 is a wasteful number, since it uses less digits than its factorization.

989928575999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118246.

The product of its digits is 11904278400, while the sum is 89.

The spelling of 989928575999 in words is "nine hundred eighty-nine billion, nine hundred twenty-eight million, five hundred seventy-five thousand, nine hundred ninety-nine".