89112391092 has 36 divisors (see below), whose sum is σ = 225284646496. Its totient is φ = 29700395280.

The previous prime is 89112391079. The next prime is 89112391097. The reversal of 89112391092 is 29019321198.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×89112391092² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89112391097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142467 + ... + 445557.

Almost surely, 2^89112391092 is an apocalyptic number.

It is an amenable number.

89112391092 is an abundant number, since it is smaller than the sum of its proper divisors (136172255404).

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

89112391092 is a wasteful number, since it uses less digits than its factorization.

89112391092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311268 (or 311263 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 89112391092 in words is "eighty-nine billion, one hundred twelve million, three hundred ninety-one thousand, ninety-two".