85619750274017 has 2 divisors, whose sum is σ = 85619750274018. Its totient is φ = 85619750274016.

The previous prime is 85619750273989. The next prime is 85619750274029. The reversal of 85619750274017 is 71047205791658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69827265025441 + 15792485248576 = 8356271^2 + 3973976^2 .

It is a cyclic number.

It is not a de Polignac number, because 85619750274017 - 2¹⁶ = 85619750208481 is a prime.

It is not a weakly prime, because it can be changed into another prime (85619750274917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42809875137008 + 42809875137009.

It is an arithmetic number, because the mean of its divisors is an integer number (42809875137009).

Almost surely, 2^{85619750274017} is an apocalyptic number.

It is an amenable number.

85619750274017 is a deficient number, since it is larger than the sum of its proper divisors (1).

85619750274017 is an equidigital number, since it uses as much as digits as its factorization.

85619750274017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29635200, while the sum is 62.

The spelling of 85619750274017 in words is "eighty-five trillion, six hundred nineteen billion, seven hundred fifty million, two hundred seventy-four thousand, seventeen".