89970998832 has 1120 divisors, whose sum is σ = 344272965120. Its totient is φ = 22305300480.

The previous prime is 89970998749. The next prime is 89970998839. The reversal of 89970998832 is 23889907998.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (89970998839) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 538748413 + ... + 538748579.

It is an arithmetic number, because the mean of its divisors is an integer number (307386576).

Almost surely, 2^89970998832 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 89970998832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172136482560).

89970998832 is an abundant number, since it is smaller than the sum of its proper divisors (254301966288).

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

89970998832 is a wasteful number, since it uses less digits than its factorization.

89970998832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 72.

The spelling of 89970998832 in words is "eighty-nine billion, nine hundred seventy million, nine hundred ninety-eight thousand, eight hundred thirty-two".