690106462085239 has 2 divisors, whose sum is σ = 690106462085240. Its totient is φ = 690106462085238.

The previous prime is 690106462085147. The next prime is 690106462085263. The reversal of 690106462085239 is 932580264601096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 690106462085239 - 2¹⁷ = 690106461954167 is a prime.

It is a super-2 number, since 2×690106462085239² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690106462085639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345053231042619 + 345053231042620.

It is an arithmetic number, because the mean of its divisors is an integer number (345053231042620).

Almost surely, 2^{690106462085239} is an apocalyptic number.

690106462085239 is a deficient number, since it is larger than the sum of its proper divisors (1).

690106462085239 is an equidigital number, since it uses as much as digits as its factorization.

690106462085239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 61.

The spelling of 690106462085239 in words is "six hundred ninety trillion, one hundred six billion, four hundred sixty-two million, eighty-five thousand, two hundred thirty-nine".