180287473730 has 64 divisors (see below), whose sum is σ = 400769849088. Its totient is φ = 56863192320.

The previous prime is 180287473711. The next prime is 180287473741. The reversal of 180287473730 is 37374782081.

180287473730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×180287473730² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71456 + ... + 604715.

It is an arithmetic number, because the mean of its divisors is an integer number (6262028892).

Almost surely, 2^180287473730 is an apocalyptic number.

180287473730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180287473730 is an abundant number, since it is smaller than the sum of its proper divisors (220482375358).

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

180287473730 is a wasteful number, since it uses less digits than its factorization.

180287473730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676491.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 180287473730 in words is "one hundred eighty billion, two hundred eighty-seven million, four hundred seventy-three thousand, seven hundred thirty".