90966866589 has 8 divisors (see below), whose sum is σ = 134765728320. Its totient is φ = 60644577708.

The previous prime is 90966866531. The next prime is 90966866603. The reversal of 90966866589 is 98566866909.

It is not a de Polignac number, because 90966866589 - 2⁷ = 90966866461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90966866509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684571577 + ... + 1684571630.

It is an arithmetic number, because the mean of its divisors is an integer number (16845716040).

Almost surely, 2^90966866589 is an apocalyptic number.

It is an amenable number.

90966866589 is a deficient number, since it is larger than the sum of its proper divisors (43798861731).

90966866589 is a wasteful number, since it uses less digits than its factorization.

90966866589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369143216 (or 3369143210 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 72.

The spelling of 90966866589 in words is "ninety billion, nine hundred sixty-six million, eight hundred sixty-six thousand, five hundred eighty-nine".