3181057843218 has 32 divisors (see below), whose sum is σ = 6482453426496. Its totient is φ = 1040298163008.

The previous prime is 3181057843207. The next prime is 3181057843253. The reversal of 3181057843218 is 8123487501813.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7066080 + ... + 7502772.

It is an arithmetic number, because the mean of its divisors is an integer number (202576669578).

Almost surely, 2^{3181057843218} is an apocalyptic number.

3181057843218 is an abundant number, since it is smaller than the sum of its proper divisors (3301395583278).

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

3181057843218 is a wasteful number, since it uses less digits than its factorization.

3181057843218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459658.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 3181057843218 in words is "three trillion, one hundred eighty-one billion, fifty-seven million, eight hundred forty-three thousand, two hundred eighteen".