89821123718 has 16 divisors (see below), whose sum is σ = 136960861920. Its totient is φ = 44167723200.

The previous prime is 89821123709. The next prime is 89821123739. The reversal of 89821123718 is 81732112898.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821978 + ... + 924818.

It is an arithmetic number, because the mean of its divisors is an integer number (8560053870).

Almost surely, 2^89821123718 is an apocalyptic number.

89821123718 is a deficient number, since it is larger than the sum of its proper divisors (47139738202).

89821123718 is a wasteful number, since it uses less digits than its factorization.

89821123718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110063.

The product of its digits is 387072, while the sum is 50.

The spelling of 89821123718 in words is "eighty-nine billion, eight hundred twenty-one million, one hundred twenty-three thousand, seven hundred eighteen".