617712340507 has 2 divisors, whose sum is σ = 617712340508. Its totient is φ = 617712340506.

The previous prime is 617712340397. The next prime is 617712340541. The reversal of 617712340507 is 705043217716.

It is a happy number.

617712340507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 617712340507 - 2¹¹ = 617712338459 is a prime.

It is a super-2 number, since 2×617712340507² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (617712340307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308856170253 + 308856170254.

It is an arithmetic number, because the mean of its divisors is an integer number (308856170254).

Almost surely, 2^617712340507 is an apocalyptic number.

617712340507 is a deficient number, since it is larger than the sum of its proper divisors (1).

617712340507 is an equidigital number, since it uses as much as digits as its factorization.

617712340507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 617712340507 in words is "six hundred seventeen billion, seven hundred twelve million, three hundred forty thousand, five hundred seven".