2685745029179 has 2 divisors, whose sum is σ = 2685745029180. Its totient is φ = 2685745029178.

The previous prime is 2685745029139. The next prime is 2685745029229. The reversal of 2685745029179 is 9719205475862.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2685745029179 is a prime.

It is a super-2 number, since 2×2685745029179² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2685745029139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342872514589 + 1342872514590.

It is an arithmetic number, because the mean of its divisors is an integer number (1342872514590).

Almost surely, 2^{2685745029179} is an apocalyptic number.

2685745029179 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685745029179 is an equidigital number, since it uses as much as digits as its factorization.

2685745029179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 2685745029179 in words is "two trillion, six hundred eighty-five billion, seven hundred forty-five million, twenty-nine thousand, one hundred seventy-nine".