89863955808 has 96 divisors (see below), whose sum is σ = 262193283072. Its totient is φ = 26717683200.

The previous prime is 89863955807. The next prime is 89863955843. The reversal of 89863955808 is 80855936898.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89863955803) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 746848 + ... + 858783.

It is an arithmetic number, because the mean of its divisors is an integer number (2731180032).

Almost surely, 2^89863955808 is an apocalyptic number.

89863955808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

89863955808 is an abundant number, since it is smaller than the sum of its proper divisors (172329327264).

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

89863955808 is a wasteful number, since it uses less digits than its factorization.

89863955808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605708 (or 1605700 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 69.

The spelling of 89863955808 in words is "eighty-nine billion, eight hundred sixty-three million, nine hundred fifty-five thousand, eight hundred eight".