89775898020 has 84 divisors (see below), whose sum is σ = 282664817820. Its totient is φ = 23940235584.

The previous prime is 89775898019. The next prime is 89775898031. The reversal of 89775898020 is 2089857798.

It can be written as a sum of positive squares in 2 ways, for example, as 18931558464 + 70844339556 = 137592^2 + 266166^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3064155 + ... + 3093314.

It is an arithmetic number, because the mean of its divisors is an integer number (3365057355).

Almost surely, 2^89775898020 is an apocalyptic number.

It is an amenable number.

89775898020 is an abundant number, since it is smaller than the sum of its proper divisors (192888919800).

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

89775898020 is a wasteful number, since it uses less digits than its factorization.

89775898020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157496 (or 6157479 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 89775898020 in words is "eighty-nine billion, seven hundred seventy-five million, eight hundred ninety-eight thousand, twenty".