180985619073 has 16 divisors (see below), whose sum is σ = 275836269440. Its totient is φ = 103402106496.

The previous prime is 180985619063. The next prime is 180985619077. The reversal of 180985619073 is 370916589081.

It is not a de Polignac number, because 180985619073 - 2²⁴ = 180968841857 is a prime.

It is a super-2 number, since 2×180985619073² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637990 + ... + 876927.

It is an arithmetic number, because the mean of its divisors is an integer number (17239766840).

Almost surely, 2^180985619073 is an apocalyptic number.

It is an amenable number.

180985619073 is a deficient number, since it is larger than the sum of its proper divisors (94850650367).

180985619073 is a wasteful number, since it uses less digits than its factorization.

180985619073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520616.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 180985619073 in words is "one hundred eighty billion, nine hundred eighty-five million, six hundred nineteen thousand, seventy-three".