989722914579 has 48 divisors (see below), whose sum is σ = 1649170099200. Its totient is φ = 560269882368.

The previous prime is 989722914529. The next prime is 989722914599. The reversal of 989722914579 is 975419227989.

It is a happy number.

989722914579 is a `hidden beast` number, since 9 + 89 + 7 + 2 + 2 + 91 + 457 + 9 = 666.

It is not a de Polignac number, because 989722914579 - 2¹⁷ = 989722783507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989722914529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2735712 + ... + 3076290.

It is an arithmetic number, because the mean of its divisors is an integer number (34357710400).

Almost surely, 2^989722914579 is an apocalyptic number.

989722914579 is a deficient number, since it is larger than the sum of its proper divisors (659447184621).

989722914579 is a wasteful number, since it uses less digits than its factorization.

989722914579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341024 (or 341021 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 72.

The spelling of 989722914579 in words is "nine hundred eighty-nine billion, seven hundred twenty-two million, nine hundred fourteen thousand, five hundred seventy-nine".