89814239138 has 18 divisors (see below), whose sum is σ = 145890657747. Its totient is φ = 41450182800.

The previous prime is 89814239117. The next prime is 89814239167. The reversal of 89814239138 is 83193241898.

It can be written as a sum of positive squares in 5 ways, for example, as 43527728689 + 46286510449 = 208633^2 + 215143^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=211913.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 5501588 + ... + 5517888.

Almost surely, 2^89814239138 is an apocalyptic number.

89814239138 is a deficient number, since it is larger than the sum of its proper divisors (56076418609).

89814239138 is an frugal number, since it uses more digits than its factorization.

89814239138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32630 (or 16316 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The spelling of 89814239138 in words is "eighty-nine billion, eight hundred fourteen million, two hundred thirty-nine thousand, one hundred thirty-eight".