285745742860 has 24 divisors (see below), whose sum is σ = 600846412320. Its totient is φ = 114149658624.

The previous prime is 285745742857. The next prime is 285745742881. The reversal of 285745742860 is 68247547582.

It is a super-2 number, since 2×285745742860² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 285745742795 and 285745742804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9274144 + ... + 9304903.

It is an arithmetic number, because the mean of its divisors is an integer number (25035267180).

Almost surely, 2^285745742860 is an apocalyptic number.

285745742860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285745742860 is an abundant number, since it is smaller than the sum of its proper divisors (315100669460).

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

285745742860 is a wasteful number, since it uses less digits than its factorization.

285745742860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18579825 (or 18579823 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 58.

The spelling of 285745742860 in words is "two hundred eighty-five billion, seven hundred forty-five million, seven hundred forty-two thousand, eight hundred sixty".