989979445299 has 32 divisors (see below), whose sum is σ = 1451205504000. Its totient is φ = 596606209920.

The previous prime is 989979445277. The next prime is 989979445303. The reversal of 989979445299 is 992544979989.

It is not a de Polignac number, because 989979445299 - 2⁷ = 989979445171 is a prime.

It is a super-2 number, since 2×989979445299² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (989979445219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 787159 + ... + 1612320.

It is an arithmetic number, because the mean of its divisors is an integer number (45350172000).

Almost surely, 2^989979445299 is an apocalyptic number.

989979445299 is a deficient number, since it is larger than the sum of its proper divisors (461226058701).

989979445299 is a wasteful number, since it uses less digits than its factorization.

989979445299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399715.

The product of its digits is 4761711360, while the sum is 84.

The spelling of 989979445299 in words is "nine hundred eighty-nine billion, nine hundred seventy-nine million, four hundred forty-five thousand, two hundred ninety-nine".