2680002749 has 2 divisors, whose sum is σ = 2680002750. Its totient is φ = 2680002748.

The previous prime is 2680002737. The next prime is 2680002811. The reversal of 2680002749 is 9472000862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2264046724 + 415956025 = 47582^2 + 20395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680002749 - 2⁴ = 2680002733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680002709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340001374 + 1340001375.

It is an arithmetic number, because the mean of its divisors is an integer number (1340001375).

Almost surely, 2^2680002749 is an apocalyptic number.

It is an amenable number.

2680002749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680002749 is an equidigital number, since it uses as much as digits as its factorization.

2680002749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2680002749 is about 51768.7429729562. The cubic root of 2680002749 is about 1389.0303865371.

The spelling of 2680002749 in words is "two billion, six hundred eighty million, two thousand, seven hundred forty-nine".