185131502380868 has 12 divisors (see below), whose sum is σ = 329471317796880. Its totient is φ = 90996840153192.

The previous prime is 185131502380843. The next prime is 185131502380871. The reversal of 185131502380868 is 868083205131581.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392227759046 + ... + 392227759517.

It is an arithmetic number, because the mean of its divisors is an integer number (27455943149740).

Almost surely, 2^{185131502380868} is an apocalyptic number.

It is an amenable number.

185131502380868 is a deficient number, since it is larger than the sum of its proper divisors (144339815416012).

185131502380868 is a wasteful number, since it uses less digits than its factorization.

185131502380868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784455518626 (or 784455518624 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 59.

The spelling of 185131502380868 in words is "one hundred eighty-five trillion, one hundred thirty-one billion, five hundred two million, three hundred eighty thousand, eight hundred sixty-eight".