180992686964 has 6 divisors (see below), whose sum is σ = 316737202194. Its totient is φ = 90496343480.

The previous prime is 180992686961. The next prime is 180992687011. The reversal of 180992686964 is 469686299081.

It can be written as a sum of positive squares in only one way, i.e., 180982176400 + 10510564 = 425420^2 + 3242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180992686894 and 180992686903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180992686961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22624085867 + ... + 22624085874.

It is an arithmetic number, because the mean of its divisors is an integer number (52789533699).

Almost surely, 2^180992686964 is an apocalyptic number.

It is an amenable number.

180992686964 is a deficient number, since it is larger than the sum of its proper divisors (135744515230).

180992686964 is a wasteful number, since it uses less digits than its factorization.

180992686964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45248171745 (or 45248171743 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 68.

The spelling of 180992686964 in words is "one hundred eighty billion, nine hundred ninety-two million, six hundred eighty-six thousand, nine hundred sixty-four".