89940477638583 has 48 divisors (see below), whose sum is σ = 158279089777536. Its totient is φ = 50316351107040.

The previous prime is 89940477638573. The next prime is 89940477638597. The reversal of 89940477638583 is 38583677404998.

It is a happy number.

89940477638583 is a `hidden beast` number, since 8 + 9 + 9 + 4 + 0 + 477 + 63 + 8 + 5 + 83 = 666.

It is not a de Polignac number, because 89940477638583 - 2⁵ = 89940477638551 is a prime.

It is a super-3 number, since 3×89940477638583³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89940477638563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1294110085 + ... + 1294179582.

It is an arithmetic number, because the mean of its divisors is an integer number (3297481037032).

Almost surely, 2^{89940477638583} is an apocalyptic number.

89940477638583 is a deficient number, since it is larger than the sum of its proper divisors (68338612138953).

89940477638583 is a wasteful number, since it uses less digits than its factorization.

89940477638583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588289706 (or 2588289694 counting only the distinct ones).

The product of its (nonzero) digits is 8778792960, while the sum is 81.

The spelling of 89940477638583 in words is "eighty-nine trillion, nine hundred forty billion, four hundred seventy-seven million, six hundred thirty-eight thousand, five hundred eighty-three".