89990534799 has 48 divisors (see below), whose sum is σ = 142501656960. Its totient is φ = 54271788480.

The previous prime is 89990534797. The next prime is 89990534819. The reversal of 89990534799 is 99743509998.

89990534799 is a `hidden beast` number, since 89 + 9 + 9 + 0 + 534 + 7 + 9 + 9 = 666.

It is not a de Polignac number, because 89990534799 - 2¹ = 89990534797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89990534797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18788697 + ... + 18793485.

It is an arithmetic number, because the mean of its divisors is an integer number (2968784520).

Almost surely, 2^89990534799 is an apocalyptic number.

89990534799 is a deficient number, since it is larger than the sum of its proper divisors (52511122161).

89990534799 is a wasteful number, since it uses less digits than its factorization.

89990534799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700 (or 5697 counting only the distinct ones).

The product of its (nonzero) digits is 198404640, while the sum is 72.

The spelling of 89990534799 in words is "eighty-nine billion, nine hundred ninety million, five hundred thirty-four thousand, seven hundred ninety-nine".