180490573693 has 2 divisors, whose sum is σ = 180490573694. Its totient is φ = 180490573692.

The previous prime is 180490573661. The next prime is 180490573733. The reversal of 180490573693 is 396375094081.

180490573693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122022366489 + 58468207204 = 349317^2 + 241802^2 .

It is a cyclic number.

It is not a de Polignac number, because 180490573693 - 2⁵ = 180490573661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180490570693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90245286846 + 90245286847.

It is an arithmetic number, because the mean of its divisors is an integer number (90245286847).

Almost surely, 2^180490573693 is an apocalyptic number.

It is an amenable number.

180490573693 is a deficient number, since it is larger than the sum of its proper divisors (1).

180490573693 is an equidigital number, since it uses as much as digits as its factorization.

180490573693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 180490573693 in words is "one hundred eighty billion, four hundred ninety million, five hundred seventy-three thousand, six hundred ninety-three".