89979601536 has 192 divisors, whose sum is σ = 283935637440. Its totient is φ = 27124531200.

The previous prime is 89979601511. The next prime is 89979601567. The reversal of 89979601536 is 63510697998.

89979601536 is a `hidden beast` number, since 8 + 9 + 9 + 7 + 96 + 0 + 1 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2427301 + ... + 2464091.

It is an arithmetic number, because the mean of its divisors is an integer number (1478831445).

Almost surely, 2^89979601536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89979601536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141967818720).

89979601536 is an abundant number, since it is smaller than the sum of its proper divisors (193956035904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89979601536 is a wasteful number, since it uses less digits than its factorization.

89979601536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37015 (or 37000 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 63.

The spelling of 89979601536 in words is "eighty-nine billion, nine hundred seventy-nine million, six hundred one thousand, five hundred thirty-six".