180049643868 has 48 divisors (see below), whose sum is σ = 434978432000. Its totient is φ = 57905020800.

The previous prime is 180049643827. The next prime is 180049643897. The reversal of 180049643868 is 868346940081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607993 + ... + 854256.

Almost surely, 2^180049643868 is an apocalyptic number.

It is an amenable number.

180049643868 is an abundant number, since it is smaller than the sum of its proper divisors (254928788132).

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

180049643868 is a wasteful number, since it uses less digits than its factorization.

180049643868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462618 (or 1462616 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 180049643868 in words is "one hundred eighty billion, forty-nine million, six hundred forty-three thousand, eight hundred sixty-eight".