102590790217 has 2 divisors, whose sum is σ = 102590790218. Its totient is φ = 102590790216.

The previous prime is 102590790179. The next prime is 102590790223. The reversal of 102590790217 is 712097095201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83329791561 + 19260998656 = 288669^2 + 138784^2 .

It is a cyclic number.

It is not a de Polignac number, because 102590790217 - 2¹⁵ = 102590757449 is a prime.

It is not a weakly prime, because it can be changed into another prime (102590790287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51295395108 + 51295395109.

It is an arithmetic number, because the mean of its divisors is an integer number (51295395109).

Almost surely, 2^102590790217 is an apocalyptic number.

It is an amenable number.

102590790217 is a deficient number, since it is larger than the sum of its proper divisors (1).

102590790217 is an equidigital number, since it uses as much as digits as its factorization.

102590790217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 43.

The spelling of 102590790217 in words is "one hundred two billion, five hundred ninety million, seven hundred ninety thousand, two hundred seventeen".