617712712617 has 64 divisors (see below), whose sum is σ = 1111393382400. Its totient is φ = 294717139200.

The previous prime is 617712712609. The next prime is 617712712699. The reversal of 617712712617 is 716217217716.

It is a happy number.

It is not a de Polignac number, because 617712712617 - 2³ = 617712712609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (617712712607) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80767 + ... + 1114427.

It is an arithmetic number, because the mean of its divisors is an integer number (17365521600).

Almost surely, 2^617712712617 is an apocalyptic number.

It is an amenable number.

617712712617 is a deficient number, since it is larger than the sum of its proper divisors (493680669783).

617712712617 is a wasteful number, since it uses less digits than its factorization.

617712712617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033894.

The product of its digits is 345744, while the sum is 48.

The spelling of 617712712617 in words is "six hundred seventeen billion, seven hundred twelve million, seven hundred twelve thousand, six hundred seventeen".