90866190852 has 48 divisors (see below), whose sum is σ = 241946024320. Its totient is φ = 29470114656.

The previous prime is 90866190841. The next prime is 90866190869. The reversal of 90866190852 is 25809166809.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11365648 + ... + 11373639.

Almost surely, 2^90866190852 is an apocalyptic number.

It is an amenable number.

90866190852 is an abundant number, since it is smaller than the sum of its proper divisors (151079833468).

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

90866190852 is a wasteful number, since it uses less digits than its factorization.

90866190852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22739337 (or 22739329 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 90866190852 in words is "ninety billion, eight hundred sixty-six million, one hundred ninety thousand, eight hundred fifty-two".