89805390680 has 64 divisors (see below), whose sum is σ = 214100172000. Its totient is φ = 33785063424.

The previous prime is 89805390667. The next prime is 89805390683. The reversal of 89805390680 is 8609350898.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89805390683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925511 + ... + 1017929.

Almost surely, 2^89805390680 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 89805390680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107050086000).

89805390680 is an abundant number, since it is smaller than the sum of its proper divisors (124294781320).

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

89805390680 is a wasteful number, since it uses less digits than its factorization.

89805390680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93876 (or 93872 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 89805390680 in words is "eighty-nine billion, eight hundred five million, three hundred ninety thousand, six hundred eighty".