180911473982 has 8 divisors (see below), whose sum is σ = 274802239200. Its totient is φ = 89310727584.

The previous prime is 180911473943. The next prime is 180911473991. The reversal of 180911473982 is 289374119081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×180911473982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 572504507 + ... + 572504822.

It is an arithmetic number, because the mean of its divisors is an integer number (34350279900).

Almost surely, 2^180911473982 is an apocalyptic number.

180911473982 is a deficient number, since it is larger than the sum of its proper divisors (93890765218).

180911473982 is a wasteful number, since it uses less digits than its factorization.

180911473982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145009410.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 180911473982 in words is "one hundred eighty billion, nine hundred eleven million, four hundred seventy-three thousand, nine hundred eighty-two".