285871730000 has 50 divisors (see below), whose sum is σ = 692124069714. Its totient is φ = 114348688000.

The previous prime is 285871729993. The next prime is 285871730059. The reversal of 285871730000 is 37178582.

It can be written as a sum of positive squares in 5 ways, for example, as 217372277824 + 68499452176 = 466232^2 + 261724^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a self number, because there is not a number n which added to its sum of digits gives 285871730000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14283587 + ... + 14303586.

Almost surely, 2^285871730000 is an apocalyptic number.

285871730000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285871730000 is an abundant number, since it is smaller than the sum of its proper divisors (406252339714).

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

285871730000 is an equidigital number, since it uses as much as digits as its factorization.

285871730000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28587201 (or 28587180 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 285871730000 in words is "two hundred eighty-five billion, eight hundred seventy-one million, seven hundred thirty thousand".