617352475387 has 2 divisors, whose sum is σ = 617352475388. Its totient is φ = 617352475386.

The previous prime is 617352475331. The next prime is 617352475391. The reversal of 617352475387 is 783574253716.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617352475387 is a prime.

It is a super-2 number, since 2×617352475387² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (617352475307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308676237693 + 308676237694.

It is an arithmetic number, because the mean of its divisors is an integer number (308676237694).

Almost surely, 2^617352475387 is an apocalyptic number.

617352475387 is a deficient number, since it is larger than the sum of its proper divisors (1).

617352475387 is an equidigital number, since it uses as much as digits as its factorization.

617352475387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29635200, while the sum is 58.

The spelling of 617352475387 in words is "six hundred seventeen billion, three hundred fifty-two million, four hundred seventy-five thousand, three hundred eighty-seven".