89612318844 has 60 divisors (see below), whose sum is σ = 234329495400. Its totient is φ = 29862460512.

The previous prime is 89612318837. The next prime is 89612318897. The reversal of 89612318844 is 44881321698.

It is a happy number.

89612318844 is a `hidden beast` number, since 8 + 9 + 612 + 3 + 18 + 8 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1187802 + ... + 1260990.

It is an arithmetic number, because the mean of its divisors is an integer number (3905491590).

Almost surely, 2^89612318844 is an apocalyptic number.

It is an amenable number.

89612318844 is an abundant number, since it is smaller than the sum of its proper divisors (144717176556).

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

89612318844 is a wasteful number, since it uses less digits than its factorization.

89612318844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76984 (or 76973 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 89612318844 in words is "eighty-nine billion, six hundred twelve million, three hundred eighteen thousand, eight hundred forty-four".