617214678953 has 2 divisors, whose sum is σ = 617214678954. Its totient is φ = 617214678952.

The previous prime is 617214678937. The next prime is 617214678961. The reversal of 617214678953 is 359876412716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 592271846464 + 24942832489 = 769592^2 + 157933^2 .

It is a cyclic number.

It is not a de Polignac number, because 617214678953 - 2⁴ = 617214678937 is a prime.

It is a super-2 number, since 2×617214678953² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 617214678892 and 617214678901.

It is not a weakly prime, because it can be changed into another prime (617214618953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308607339476 + 308607339477.

It is an arithmetic number, because the mean of its divisors is an integer number (308607339477).

Almost surely, 2^617214678953 is an apocalyptic number.

It is an amenable number.

617214678953 is a deficient number, since it is larger than the sum of its proper divisors (1).

617214678953 is an equidigital number, since it uses as much as digits as its factorization.

617214678953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 59.

The spelling of 617214678953 in words is "six hundred seventeen billion, two hundred fourteen million, six hundred seventy-eight thousand, nine hundred fifty-three".