30417085217 has 2 divisors, whose sum is σ = 30417085218. Its totient is φ = 30417085216.

The previous prime is 30417085211. The next prime is 30417085229. The reversal of 30417085217 is 71258071403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21967982656 + 8449102561 = 148216^2 + 91919^2 .

It is a cyclic number.

It is not a de Polignac number, because 30417085217 - 2²⁰ = 30416036641 is a prime.

It is not a weakly prime, because it can be changed into another prime (30417085211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15208542608 + 15208542609.

It is an arithmetic number, because the mean of its divisors is an integer number (15208542609).

Almost surely, 2^30417085217 is an apocalyptic number.

It is an amenable number.

30417085217 is a deficient number, since it is larger than the sum of its proper divisors (1).

30417085217 is an equidigital number, since it uses as much as digits as its factorization.

30417085217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 30417085217 in words is "thirty billion, four hundred seventeen million, eighty-five thousand, two hundred seventeen".