89916497889 has 16 divisors (see below), whose sum is σ = 121879312320. Its totient is φ = 58949415360.

The previous prime is 89916497863. The next prime is 89916497899. The reversal of 89916497889 is 98879461998.

It is not a de Polignac number, because 89916497889 - 2⁷ = 89916497761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89916497899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880702 + ... + 977480.

It is an arithmetic number, because the mean of its divisors is an integer number (7617457020).

Almost surely, 2^89916497889 is an apocalyptic number.

It is an amenable number.

89916497889 is a deficient number, since it is larger than the sum of its proper divisors (31962814431).

89916497889 is a wasteful number, since it uses less digits than its factorization.

89916497889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101920.

The product of its digits is 564350976, while the sum is 78.

The spelling of 89916497889 in words is "eighty-nine billion, nine hundred sixteen million, four hundred ninety-seven thousand, eight hundred eighty-nine".