89123812974 has 192 divisors, whose sum is σ = 237867347520. Its totient is φ = 24644632320.

The previous prime is 89123812931. The next prime is 89123812991. The reversal of 89123812974 is 47921832198.

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

It is a self number, because there is not a number n which added to its sum of digits gives 89123812974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19284384 + ... + 19289004.

It is an arithmetic number, because the mean of its divisors is an integer number (1238892435).

Almost surely, 2^89123812974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89123812974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118933673760).

89123812974 is an abundant number, since it is smaller than the sum of its proper divisors (148743534546).

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

89123812974 is a wasteful number, since it uses less digits than its factorization.

89123812974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880 (or 4867 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 89123812974 in words is "eighty-nine billion, one hundred twenty-three million, eight hundred twelve thousand, nine hundred seventy-four".