285712949825 has 48 divisors (see below), whose sum is σ = 379456963200. Its totient is φ = 212773132800.

The previous prime is 285712949803. The next prime is 285712949833. The reversal of 285712949825 is 528949217582.

It is not a de Polignac number, because 285712949825 - 2³⁰ = 284639208001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9312260 + ... + 9342890.

It is an arithmetic number, because the mean of its divisors is an integer number (7905353400).

Almost surely, 2^285712949825 is an apocalyptic number.

285712949825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285712949825 is a deficient number, since it is larger than the sum of its proper divisors (93744013375).

285712949825 is a wasteful number, since it uses less digits than its factorization.

285712949825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31002 (or 30997 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 62.

The spelling of 285712949825 in words is "two hundred eighty-five billion, seven hundred twelve million, nine hundred forty-nine thousand, eight hundred twenty-five".