180985618942 has 24 divisors (see below), whose sum is σ = 287215959024. Its totient is φ = 85372493184.

The previous prime is 180985618927. The next prime is 180985618973. The reversal of 180985618942 is 249816589081.

180985618942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124023 + ... + 614290.

It is an arithmetic number, because the mean of its divisors is an integer number (11967331626).

Almost surely, 2^180985618942 is an apocalyptic number.

180985618942 is a deficient number, since it is larger than the sum of its proper divisors (106230340082).

180985618942 is an equidigital number, since it uses as much as digits as its factorization.

180985618942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738484 (or 738411 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 61.

The spelling of 180985618942 in words is "one hundred eighty billion, nine hundred eighty-five million, six hundred eighteen thousand, nine hundred forty-two".