522855812631018 has 16 divisors (see below), whose sum is σ = 1065442033286496. Its totient is φ = 170996869539600.

The previous prime is 522855812631013. The next prime is 522855812631041. The reversal of 522855812631018 is 810136218558225.

It is not an unprimeable number, because it can be changed into a prime (522855812631013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822100334008 + ... + 822100334643.

It is an arithmetic number, because the mean of its divisors is an integer number (66590127080406).

Almost surely, 2^{522855812631018} is an apocalyptic number.

522855812631018 is an abundant number, since it is smaller than the sum of its proper divisors (542586220655478).

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

522855812631018 is a wasteful number, since it uses less digits than its factorization.

522855812631018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644200668709.

The product of its (nonzero) digits is 9216000, while the sum is 57.

The spelling of 522855812631018 in words is "five hundred twenty-two trillion, eight hundred fifty-five billion, eight hundred twelve million, six hundred thirty-one thousand, eighteen".