2680564993 has 2 divisors, whose sum is σ = 2680564994. Its totient is φ = 2680564992.

The previous prime is 2680564987. The next prime is 2680565023. The reversal of 2680564993 is 3994650862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394051569 + 1286513424 = 37337^2 + 35868^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680564993 - 2⁵ = 2680564961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2680564993.

It is not a weakly prime, because it can be changed into another prime (2680564903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340282496 + 1340282497.

It is an arithmetic number, because the mean of its divisors is an integer number (1340282497).

Almost surely, 2^2680564993 is an apocalyptic number.

It is an amenable number.

2680564993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680564993 is an equidigital number, since it uses as much as digits as its factorization.

2680564993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The square root of 2680564993 is about 51774.1730305758. The cubic root of 2680564993 is about 1389.1275157152.

The spelling of 2680564993 in words is "two billion, six hundred eighty million, five hundred sixty-four thousand, nine hundred ninety-three".