89869172544 has 224 divisors, whose sum is σ = 276063943680. Its totient is φ = 28614643200.

The previous prime is 89869172537. The next prime is 89869172557. The reversal of 89869172544 is 44527196898.

89869172544 is a `hidden beast` number, since 8 + 9 + 86 + 9 + 1 + 7 + 2 + 544 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46539259 + ... + 46541189.

It is an arithmetic number, because the mean of its divisors is an integer number (1232428320).

Almost surely, 2^89869172544 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 89869172544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138031971840).

89869172544 is an abundant number, since it is smaller than the sum of its proper divisors (186194771136).

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

89869172544 is a wasteful number, since it uses less digits than its factorization.

89869172544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146 (or 3130 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 89869172544 in words is "eighty-nine billion, eight hundred sixty-nine million, one hundred seventy-two thousand, five hundred forty-four".