610695140669 has 2 divisors, whose sum is σ = 610695140670. Its totient is φ = 610695140668.

The previous prime is 610695140591. The next prime is 610695140681. The reversal of 610695140669 is 966041596016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561428011225 + 49267129444 = 749285^2 + 221962^2 .

It is a cyclic number.

It is not a de Polignac number, because 610695140669 - 2¹² = 610695136573 is a prime.

It is a super-2 number, since 2×610695140669² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 610695140669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610695640669) 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, 305347570334 + 305347570335.

It is an arithmetic number, because the mean of its divisors is an integer number (305347570335).

Almost surely, 2^610695140669 is an apocalyptic number.

It is an amenable number.

610695140669 is a deficient number, since it is larger than the sum of its proper divisors (1).

610695140669 is an equidigital number, since it uses as much as digits as its factorization.

610695140669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 610695140669 in words is "six hundred ten billion, six hundred ninety-five million, one hundred forty thousand, six hundred sixty-nine".