12616424617 has 2 divisors, whose sum is σ = 12616424618. Its totient is φ = 12616424616.

The previous prime is 12616424603. The next prime is 12616424621. The reversal of 12616424617 is 71642461621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6629379241 + 5987045376 = 81421^2 + 77376^2 .

It is a cyclic number.

It is not a de Polignac number, because 12616424617 - 2¹¹ = 12616422569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12616424617.

It is not a weakly prime, because it can be changed into another prime (12616424917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308212308 + 6308212309.

It is an arithmetic number, because the mean of its divisors is an integer number (6308212309).

Almost surely, 2^12616424617 is an apocalyptic number.

It is an amenable number.

12616424617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12616424617 is an equidigital number, since it uses as much as digits as its factorization.

12616424617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The spelling of 12616424617 in words is "twelve billion, six hundred sixteen million, four hundred twenty-four thousand, six hundred seventeen".