285857457460 has 48 divisors (see below), whose sum is σ = 631972333440. Its totient is φ = 108311748480.

The previous prime is 285857457451. The next prime is 285857457467. The reversal of 285857457460 is 64754758582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285857457467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3427050 + ... + 3509470.

It is an arithmetic number, because the mean of its divisors is an integer number (13166090280).

Almost surely, 2^285857457460 is an apocalyptic number.

285857457460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285857457460 is an abundant number, since it is smaller than the sum of its proper divisors (346114875980).

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

285857457460 is a wasteful number, since it uses less digits than its factorization.

285857457460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91576 (or 91574 counting only the distinct ones).

The product of its (nonzero) digits is 75264000, while the sum is 61.

The spelling of 285857457460 in words is "two hundred eighty-five billion, eight hundred fifty-seven million, four hundred fifty-seven thousand, four hundred sixty".