89743565856 has 72 divisors (see below), whose sum is σ = 274038402960. Its totient is φ = 25641017472.

The previous prime is 89743565809. The next prime is 89743565867. The reversal of 89743565856 is 65856534798.

It is a super-2 number, since 2×89743565856² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9534366 + ... + 9543773.

It is an arithmetic number, because the mean of its divisors is an integer number (3806088930).

Almost surely, 2^89743565856 is an apocalyptic number.

It is an amenable number.

89743565856 is an abundant number, since it is smaller than the sum of its proper divisors (184294837104).

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

89743565856 is a wasteful number, since it uses less digits than its factorization.

89743565856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19078166 (or 19078151 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 66.

The spelling of 89743565856 in words is "eighty-nine billion, seven hundred forty-three million, five hundred sixty-five thousand, eight hundred fifty-six".