285990977398192 has 40 divisors (see below), whose sum is σ = 636295715271360. Its totient is φ = 123154009404480.

The previous prime is 285990977398183. The next prime is 285990977398201. The reversal of 285990977398192 is 291893779099582.

It is an interprime number because it is at equal distance from previous prime (285990977398183) and next prime (285990977398201).

It is a Harshad number since it is a multiple of its sum of digits (88).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42761805478 + ... + 42761812165.

It is an arithmetic number, because the mean of its divisors is an integer number (15907392881784).

Almost surely, 2^{285990977398192} is an apocalyptic number.

285990977398192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

285990977398192 is an abundant number, since it is smaller than the sum of its proper divisors (350304737873168).

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

285990977398192 is a wasteful number, since it uses less digits than its factorization.

285990977398192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85523617681 (or 85523617675 counting only the distinct ones).

The product of its (nonzero) digits is 11110659840, while the sum is 88.

The spelling of 285990977398192 in words is "two hundred eighty-five trillion, nine hundred ninety billion, nine hundred seventy-seven million, three hundred ninety-eight thousand, one hundred ninety-two".