2685934729 has 2 divisors, whose sum is σ = 2685934730. Its totient is φ = 2685934728.

The previous prime is 2685934717. The next prime is 2685934739. The reversal of 2685934729 is 9274395862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1387413504 + 1298521225 = 37248^2 + 36035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685934729 - 2⁹ = 2685934217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2685934729.

It is not a weakly prime, because it can be changed into another prime (2685934739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342967364 + 1342967365.

It is an arithmetic number, because the mean of its divisors is an integer number (1342967365).

Almost surely, 2^2685934729 is an apocalyptic number.

It is an amenable number.

2685934729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685934729 is an equidigital number, since it uses as much as digits as its factorization.

2685934729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 55.

The square root of 2685934729 is about 51826.0043703931. The cubic root of 2685934729 is about 1390.0544686486.

The spelling of 2685934729 in words is "two billion, six hundred eighty-five million, nine hundred thirty-four thousand, seven hundred twenty-nine".