180985619052 has 96 divisors (see below), whose sum is σ = 538616547840. Its totient is φ = 51482329920.

The previous prime is 180985619047. The next prime is 180985619063. The reversal of 180985619052 is 250916589081.

180985619052 is a `hidden beast` number, since 18 + 0 + 9 + 8 + 5 + 619 + 0 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 180985619052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355699 + ... + 698922.

It is an arithmetic number, because the mean of its divisors is an integer number (5610589040).

Almost surely, 2^180985619052 is an apocalyptic number.

180985619052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180985619052 is an abundant number, since it is smaller than the sum of its proper divisors (357630928788).

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

180985619052 is a wasteful number, since it uses less digits than its factorization.

180985619052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054868 (or 1054860 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 54.

The spelling of 180985619052 in words is "one hundred eighty billion, nine hundred eighty-five million, six hundred nineteen thousand, fifty-two".