89400505005 has 64 divisors (see below), whose sum is σ = 186548359680. Its totient is φ = 39764224512.

The previous prime is 89400504983. The next prime is 89400505037. The reversal of 89400505005 is 50050500498.

It is a happy number.

It is not a de Polignac number, because 89400505005 - 2⁸ = 89400504749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1243464 + ... + 1313393.

It is an arithmetic number, because the mean of its divisors is an integer number (2914818120).

Almost surely, 2^89400505005 is an apocalyptic number.

It is an amenable number.

89400505005 is an abundant number, since it is smaller than the sum of its proper divisors (97147854675).

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

89400505005 is a wasteful number, since it uses less digits than its factorization.

89400505005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556915 (or 2556909 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 89400505005 in words is "eighty-nine billion, four hundred million, five hundred five thousand, five".