285329135826680 has 128 divisors (see below), whose sum is σ = 735027780395520. Its totient is φ = 98671246164480.

The previous prime is 285329135826671. The next prime is 285329135826737. The reversal of 285329135826680 is 86628531923582.

It is a self number, because there is not a number n which added to its sum of digits gives 285329135826680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79736462 + ... + 83237981.

It is an arithmetic number, because the mean of its divisors is an integer number (5742404534340).

Almost surely, 2^{285329135826680} is an apocalyptic number.

285329135826680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285329135826680 is an abundant number, since it is smaller than the sum of its proper divisors (449698644568840).

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

285329135826680 is a wasteful number, since it uses less digits than its factorization.

285329135826680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162974661 (or 162974657 counting only the distinct ones).

The product of its (nonzero) digits is 298598400, while the sum is 68.

The spelling of 285329135826680 in words is "two hundred eighty-five trillion, three hundred twenty-nine billion, one hundred thirty-five million, eight hundred twenty-six thousand, six hundred eighty".