90175674317 has 2 divisors, whose sum is σ = 90175674318. Its totient is φ = 90175674316.

The previous prime is 90175674307. The next prime is 90175674349. The reversal of 90175674317 is 71347657109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88609810276 + 1565864041 = 297674^2 + 39571^2 .

It is a cyclic number.

It is not a de Polignac number, because 90175674317 - 2¹⁴ = 90175657933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90175674307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45087837158 + 45087837159.

It is an arithmetic number, because the mean of its divisors is an integer number (45087837159).

Almost surely, 2^90175674317 is an apocalyptic number.

It is an amenable number.

90175674317 is a deficient number, since it is larger than the sum of its proper divisors (1).

90175674317 is an equidigital number, since it uses as much as digits as its factorization.

90175674317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The spelling of 90175674317 in words is "ninety billion, one hundred seventy-five million, six hundred seventy-four thousand, three hundred seventeen".