990426624099 has 32 divisors (see below), whose sum is σ = 1464649171200. Its totient is φ = 590326416000.

The previous prime is 990426624091. The next prime is 990426624107.

990426624099 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (990426624091) and next prime (990426624107).

It is not a de Polignac number, because 990426624099 - 2³ = 990426624091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (990426624091) 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 31 ways as a sum of consecutive naturals, for example, 500557 + ... + 1493790.

It is an arithmetic number, because the mean of its divisors is an integer number (45770286600).

Almost surely, 2^990426624099 is an apocalyptic number.

990426624099 is a deficient number, since it is larger than the sum of its proper divisors (474222547101).

990426624099 is a wasteful number, since it uses less digits than its factorization.

990426624099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994611.

The product of its (nonzero) digits is 15116544, while the sum is 60.

The spelling of 990426624099 in words is "nine hundred ninety billion, four hundred twenty-six million, six hundred twenty-four thousand, ninety-nine".