89981350816824 has 96 divisors (see below), whose sum is σ = 247348590437520. Its totient is φ = 29544706464768.

The previous prime is 89981350816771. The next prime is 89981350816837. The reversal of 89981350816824 is 42861805318998.

89981350816824 is a `hidden beast` number, since 8 + 9 + 9 + 81 + 3 + 508 + 16 + 8 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103248304 + ... + 104116160.

Almost surely, 2^{89981350816824} is an apocalyptic number.

It is an amenable number.

89981350816824 is an abundant number, since it is smaller than the sum of its proper divisors (157367239620696).

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

89981350816824 is a wasteful number, since it uses less digits than its factorization.

89981350816824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889429 (or 889422 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 72.

The spelling of 89981350816824 in words is "eighty-nine trillion, nine hundred eighty-one billion, three hundred fifty million, eight hundred sixteen thousand, eight hundred twenty-four".