2680813957 has 2 divisors, whose sum is σ = 2680813958. Its totient is φ = 2680813956.

The previous prime is 2680813879. The next prime is 2680813979. The reversal of 2680813957 is 7593180862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2418082276 + 262731681 = 49174^2 + 16209^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680813957 - 2¹⁵ = 2680781189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2680813957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680813357) 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, 1340406978 + 1340406979.

It is an arithmetic number, because the mean of its divisors is an integer number (1340406979).

Almost surely, 2^2680813957 is an apocalyptic number.

It is an amenable number.

2680813957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680813957 is an equidigital number, since it uses as much as digits as its factorization.

2680813957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 2680813957 is about 51776.5773009379. The cubic root of 2680813957 is about 1389.1705205838.

The spelling of 2680813957 in words is "two billion, six hundred eighty million, eight hundred thirteen thousand, nine hundred fifty-seven".