180857238012 has 72 divisors (see below), whose sum is σ = 514815555072. Its totient is φ = 53037309600.

The previous prime is 180857237989. The next prime is 180857238031. The reversal of 180857238012 is 210832758081.

180857238012 is a `hidden beast` number, since 180 + 85 + 7 + 2 + 380 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7354018 + ... + 7378569.

Almost surely, 2^180857238012 is an apocalyptic number.

180857238012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180857238012 is an abundant number, since it is smaller than the sum of its proper divisors (333958317060).

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

180857238012 is a wasteful number, since it uses less digits than its factorization.

180857238012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14732639 (or 14732634 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 180857238012 in words is "one hundred eighty billion, eight hundred fifty-seven million, two hundred thirty-eight thousand, twelve".