180456704138 has 8 divisors (see below), whose sum is σ = 271071199620. Its totient is φ = 90099637600.

The previous prime is 180456704117. The next prime is 180456704143. The reversal of 180456704138 is 831407654081.

It can be written as a sum of positive squares in 2 ways, for example, as 160939775929 + 19516928209 = 401173^2 + 139703^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 180456704092 and 180456704101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64355483 + ... + 64358286.

Almost surely, 2^180456704138 is an apocalyptic number.

180456704138 is a deficient number, since it is larger than the sum of its proper divisors (90614495482).

180456704138 is a wasteful number, since it uses less digits than its factorization.

180456704138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128714472.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 180456704138 in words is "one hundred eighty billion, four hundred fifty-six million, seven hundred four thousand, one hundred thirty-eight".