404344013118173 has 2 divisors, whose sum is σ = 404344013118174. Its totient is φ = 404344013118172.

The previous prime is 404344013118167. The next prime is 404344013118209. The reversal of 404344013118173 is 371811310443404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302315488877284 + 102028524240889 = 17387222^2 + 10100917^2 .

It is a cyclic number.

It is not a de Polignac number, because 404344013118173 - 2¹² = 404344013114077 is a prime.

It is a super-2 number, since 2×404344013118173² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404344013111173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202172006559086 + 202172006559087.

It is an arithmetic number, because the mean of its divisors is an integer number (202172006559087).

Almost surely, 2^{404344013118173} is an apocalyptic number.

It is an amenable number.

404344013118173 is a deficient number, since it is larger than the sum of its proper divisors (1).

404344013118173 is an equidigital number, since it uses as much as digits as its factorization.

404344013118173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 404344013118173 in words is "four hundred four trillion, three hundred forty-four billion, thirteen million, one hundred eighteen thousand, one hundred seventy-three".