89528021200 has 60 divisors (see below), whose sum is σ = 215123720908. Its totient is φ = 35805772800.

The previous prime is 89528021171. The next prime is 89528021239. The reversal of 89528021200 is 212082598.

It can be written as a sum of positive squares in 6 ways, for example, as 7645054096 + 81882967104 = 87436^2 + 286152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 89528021200.

It is a congruent number.

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, 3563884 + ... + 3588916.

Almost surely, 2^89528021200 is an apocalyptic number.

89528021200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89528021200 is an abundant number, since it is smaller than the sum of its proper divisors (125595699708).

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

89528021200 is a wasteful number, since it uses less digits than its factorization.

89528021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33992 (or 33981 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 89528021200 in words is "eighty-nine billion, five hundred twenty-eight million, twenty-one thousand, two hundred".