285271622988 has 48 divisors (see below), whose sum is σ = 726444735744. Its totient is φ = 86410376640.

The previous prime is 285271622959. The next prime is 285271623001. The reversal of 285271622988 is 889226172582.

It is a super-2 number, since 2×285271622988² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

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, 121720 + ... + 765087.

It is an arithmetic number, because the mean of its divisors is an integer number (15134265328).

Almost surely, 2^285271622988 is an apocalyptic number.

It is an amenable number.

285271622988 is an abundant number, since it is smaller than the sum of its proper divisors (441173112756).

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

285271622988 is a wasteful number, since it uses less digits than its factorization.

285271622988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889262 (or 889260 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The spelling of 285271622988 in words is "two hundred eighty-five billion, two hundred seventy-one million, six hundred twenty-two thousand, nine hundred eighty-eight".