611413552517 has 2 divisors, whose sum is σ = 611413552518. Its totient is φ = 611413552516.

The previous prime is 611413552457. The next prime is 611413552543. The reversal of 611413552517 is 715255314116.

It is a happy number.

611413552517 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 can be written as a sum of positive squares in only one way, i.e., 538402270081 + 73011282436 = 733759^2 + 270206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611413552517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611413552567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305706776258 + 305706776259.

It is an arithmetic number, because the mean of its divisors is an integer number (305706776259).

Almost surely, 2^611413552517 is an apocalyptic number.

It is an amenable number.

611413552517 is a deficient number, since it is larger than the sum of its proper divisors (1).

611413552517 is an equidigital number, since it uses as much as digits as its factorization.

611413552517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 41.

The spelling of 611413552517 in words is "six hundred eleven billion, four hundred thirteen million, five hundred fifty-two thousand, five hundred seventeen".