180944190893 has 2 divisors, whose sum is σ = 180944190894. Its totient is φ = 180944190892.

The previous prime is 180944190863. The next prime is 180944190913. The reversal of 180944190893 is 398091449081.

180944190893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179842150084 + 1102040809 = 424078^2 + 33197^2 .

It is a cyclic number.

It is not a de Polignac number, because 180944190893 - 2²⁴ = 180927413677 is a prime.

It is a super-3 number, since 3×180944190893³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180944190803) 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, 90472095446 + 90472095447.

It is an arithmetic number, because the mean of its divisors is an integer number (90472095447).

Almost surely, 2^180944190893 is an apocalyptic number.

It is an amenable number.

180944190893 is a deficient number, since it is larger than the sum of its proper divisors (1).

180944190893 is an equidigital number, since it uses as much as digits as its factorization.

180944190893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 180944190893 in words is "one hundred eighty billion, nine hundred forty-four million, one hundred ninety thousand, eight hundred ninety-three".