612536716461217 has 2 divisors, whose sum is σ = 612536716461218. Its totient is φ = 612536716461216.

The previous prime is 612536716461203. The next prime is 612536716461253. The reversal of 612536716461217 is 712164617635216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401211155425536 + 211325561035681 = 20030256^2 + 14537041^2 .

It is a cyclic number.

It is not a de Polignac number, because 612536716461217 - 2²⁷ = 612536582243489 is a prime.

It is not a weakly prime, because it can be changed into another prime (612546716461217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306268358230608 + 306268358230609.

It is an arithmetic number, because the mean of its divisors is an integer number (306268358230609).

Almost surely, 2^{612536716461217} is an apocalyptic number.

It is an amenable number.

612536716461217 is a deficient number, since it is larger than the sum of its proper divisors (1).

612536716461217 is an equidigital number, since it uses as much as digits as its factorization.

612536716461217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 58.

The spelling of 612536716461217 in words is "six hundred twelve trillion, five hundred thirty-six billion, seven hundred sixteen million, four hundred sixty-one thousand, two hundred seventeen".