617346725953 has 2 divisors, whose sum is σ = 617346725954. Its totient is φ = 617346725952.

The previous prime is 617346725909. The next prime is 617346725987. The reversal of 617346725953 is 359527643716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367633643584 + 249713082369 = 606328^2 + 499713^2 .

It is a cyclic number.

It is not a de Polignac number, because 617346725953 - 2¹³ = 617346717761 is a prime.

It is a super-2 number, since 2×617346725953² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (617346725353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308673362976 + 308673362977.

It is an arithmetic number, because the mean of its divisors is an integer number (308673362977).

Almost surely, 2^617346725953 is an apocalyptic number.

It is an amenable number.

617346725953 is a deficient number, since it is larger than the sum of its proper divisors (1).

617346725953 is an equidigital number, since it uses as much as digits as its factorization.

617346725953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28576800, while the sum is 58.

The spelling of 617346725953 in words is "six hundred seventeen billion, three hundred forty-six million, seven hundred twenty-five thousand, nine hundred fifty-three".