89869421952 has 192 divisors, whose sum is σ = 269570761200. Its totient is φ = 28710899712.

The previous prime is 89869421909. The next prime is 89869421959. The reversal of 89869421952 is 25912496898.

89869421952 is a `hidden beast` number, since 89 + 86 + 9 + 421 + 9 + 52 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 89869421952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89869421959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2840074 + ... + 2871542.

Almost surely, 2^89869421952 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 89869421952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134785380600).

89869421952 is an abundant number, since it is smaller than the sum of its proper divisors (179701339248).

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

89869421952 is a wasteful number, since it uses less digits than its factorization.

89869421952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31593 (or 31578 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The spelling of 89869421952 in words is "eighty-nine billion, eight hundred sixty-nine million, four hundred twenty-one thousand, nine hundred fifty-two".