89185807872 has 360 divisors, whose sum is σ = 315194279400. Its totient is φ = 24139358208.

The previous prime is 89185807859. The next prime is 89185807897. The reversal of 89185807872 is 27870858198.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4279654 + ... + 4300442.

It is an arithmetic number, because the mean of its divisors is an integer number (875539665).

Almost surely, 2^89185807872 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 89185807872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157597139700).

89185807872 is an abundant number, since it is smaller than the sum of its proper divisors (226008471528).

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

89185807872 is a wasteful number, since it uses less digits than its factorization.

89185807872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20846 (or 20820 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 63.

The spelling of 89185807872 in words is "eighty-nine billion, one hundred eighty-five million, eight hundred seven thousand, eight hundred seventy-two".