402495492173 has 2 divisors, whose sum is σ = 402495492174. Its totient is φ = 402495492172.

The previous prime is 402495492151. The next prime is 402495492209. The reversal of 402495492173 is 371294594204.

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., 241865272804 + 160630219369 = 491798^2 + 400787^2 .

It is a cyclic number.

It is not a de Polignac number, because 402495492173 - 2¹⁸ = 402495230029 is a prime.

It is a super-5 number, since 5×402495492173⁵ (a number of 59 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402495492673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201247746086 + 201247746087.

It is an arithmetic number, because the mean of its divisors is an integer number (201247746087).

Almost surely, 2^402495492173 is an apocalyptic number.

It is an amenable number.

402495492173 is a deficient number, since it is larger than the sum of its proper divisors (1).

402495492173 is an equidigital number, since it uses as much as digits as its factorization.

402495492173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 402495492173 in words is "four hundred two billion, four hundred ninety-five million, four hundred ninety-two thousand, one hundred seventy-three".