180985619079 has 20 divisors (see below), whose sum is σ = 286264837584. Its totient is φ = 113559603264.

The previous prime is 180985619077. The next prime is 180985619083. The reversal of 180985619079 is 970916589081.

180985619079 is a `hidden beast` number, since 1 + 8 + 0 + 9 + 8 + 5 + 619 + 0 + 7 + 9 = 666.

It is not a de Polignac number, because 180985619079 - 2¹ = 180985619077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180985619077) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 65715987 + ... + 65718740.

Almost surely, 2^180985619079 is an apocalyptic number.

180985619079 is a deficient number, since it is larger than the sum of its proper divisors (105279218505).

180985619079 is a wasteful number, since it uses less digits than its factorization.

180985619079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131434756 (or 131434747 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 180985619079 in words is "one hundred eighty billion, nine hundred eighty-five million, six hundred nineteen thousand, seventy-nine".