98889523891 has 16 divisors (see below), whose sum is σ = 103805501184. Its totient is φ = 94026597984.

The previous prime is 98889523883. The next prime is 98889523927. The reversal of 98889523891 is 19832598889.

It is a cyclic number.

It is not a de Polignac number, because 98889523891 - 2³ = 98889523883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98889523891.

It is not an unprimeable number, because it can be changed into a prime (98889521891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2614980 + ... + 2652526.

It is an arithmetic number, because the mean of its divisors is an integer number (6487843824).

Almost surely, 2^98889523891 is an apocalyptic number.

98889523891 is a deficient number, since it is larger than the sum of its proper divisors (4915977293).

98889523891 is a wasteful number, since it uses less digits than its factorization.

98889523891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38250.

The product of its digits is 89579520, while the sum is 70.

The spelling of 98889523891 in words is "ninety-eight billion, eight hundred eighty-nine million, five hundred twenty-three thousand, eight hundred ninety-one".