285238686152350 has 48 divisors (see below), whose sum is σ = 606687858384768. Its totient is φ = 97739361548640.

The previous prime is 285238686152257. The next prime is 285238686152351. The reversal of 285238686152350 is 53251686832582.

It is a super-2 number, since 2×285238686152350² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285238686152351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235893664 + ... + 237099763.

It is an arithmetic number, because the mean of its divisors is an integer number (12639330383016).

Almost surely, 2^{285238686152350} is an apocalyptic number.

285238686152350 is an abundant number, since it is smaller than the sum of its proper divisors (321449172232418).

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

285238686152350 is a wasteful number, since it uses less digits than its factorization.

285238686152350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472995169 (or 472995164 counting only the distinct ones).

The product of its (nonzero) digits is 165888000, while the sum is 64.

The spelling of 285238686152350 in words is "two hundred eighty-five trillion, two hundred thirty-eight billion, six hundred eighty-six million, one hundred fifty-two thousand, three hundred fifty".