99879323559 has 16 divisors (see below), whose sum is σ = 141015103488. Its totient is φ = 62665379712.

The previous prime is 99879323543. The next prime is 99879323573. The reversal of 99879323559 is 95532397899.

It is not a de Polignac number, because 99879323559 - 2⁴ = 99879323543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99879323493 and 99879323502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99879323539) 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, 883404 + ... + 990030.

It is an arithmetic number, because the mean of its divisors is an integer number (8813443968).

Almost surely, 2^99879323559 is an apocalyptic number.

99879323559 is a deficient number, since it is larger than the sum of its proper divisors (41135779929).

99879323559 is a wasteful number, since it uses less digits than its factorization.

99879323559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125014.

The product of its digits is 165337200, while the sum is 69.

The spelling of 99879323559 in words is "ninety-nine billion, eight hundred seventy-nine million, three hundred twenty-three thousand, five hundred fifty-nine".