89756545312 has 96 divisors (see below), whose sum is σ = 212469989760. Its totient is φ = 36514437120.

The previous prime is 89756545309. The next prime is 89756545429. The reversal of 89756545312 is 21354565798.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207739 + ... + 471877.

It is an arithmetic number, because the mean of its divisors is an integer number (2213229060).

Almost surely, 2^89756545312 is an apocalyptic number.

89756545312 is a gapful number since it is divisible by the number (82) 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 89756545312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106234994880).

89756545312 is an abundant number, since it is smaller than the sum of its proper divisors (122713444448).

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

89756545312 is a wasteful number, since it uses less digits than its factorization.

89756545312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264234 (or 264226 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 55.

The spelling of 89756545312 in words is "eighty-nine billion, seven hundred fifty-six million, five hundred forty-five thousand, three hundred twelve".