611253912917 has 2 divisors, whose sum is σ = 611253912918. Its totient is φ = 611253912916.

The previous prime is 611253912881. The next prime is 611253913033. The reversal of 611253912917 is 719219352116.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426113895076 + 185140017841 = 652774^2 + 430279^2 .

It is a cyclic number.

It is not a de Polignac number, because 611253912917 - 2¹⁰ = 611253911893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611213912917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305626956458 + 305626956459.

It is an arithmetic number, because the mean of its divisors is an integer number (305626956459).

Almost surely, 2^611253912917 is an apocalyptic number.

It is an amenable number.

611253912917 is a deficient number, since it is larger than the sum of its proper divisors (1).

611253912917 is an equidigital number, since it uses as much as digits as its factorization.

611253912917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 47.

The spelling of 611253912917 in words is "six hundred eleven billion, two hundred fifty-three million, nine hundred twelve thousand, nine hundred seventeen".