89139011520 has 224 divisors, whose sum is σ = 305268489792. Its totient is φ = 21907243008.

The previous prime is 89139011519. The next prime is 89139011581. The reversal of 89139011520 is 2511093198.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 8393734 + ... + 8404346.

It is an arithmetic number, because the mean of its divisors is an integer number (1362805758).

Almost surely, 2^89139011520 is an apocalyptic number.

89139011520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89139011520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152634244896).

89139011520 is an abundant number, since it is smaller than the sum of its proper divisors (216129478272).

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

89139011520 is a wasteful number, since it uses less digits than its factorization.

89139011520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319 (or 11309 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 39.

The spelling of 89139011520 in words is "eighty-nine billion, one hundred thirty-nine million, eleven thousand, five hundred twenty".