286457040828 has 36 divisors (see below), whose sum is σ = 827542563120. Its totient is φ = 81844868736.

The previous prime is 286457040809. The next prime is 286457040833. The reversal of 286457040828 is 828040754682.

286457040828 is a `hidden beast` number, since 2 + 8 + 6 + 4 + 570 + 40 + 8 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568366893 + ... + 568367396.

It is an arithmetic number, because the mean of its divisors is an integer number (22987293420).

Almost surely, 2^286457040828 is an apocalyptic number.

286457040828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

286457040828 is an abundant number, since it is smaller than the sum of its proper divisors (541085522292).

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

286457040828 is a wasteful number, since it uses less digits than its factorization.

286457040828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136734306 (or 1136734301 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 286457040828 in words is "two hundred eighty-six billion, four hundred fifty-seven million, forty thousand, eight hundred twenty-eight".