2680707901549 has 2 divisors, whose sum is σ = 2680707901550. Its totient is φ = 2680707901548.

The previous prime is 2680707901523. The next prime is 2680707901561. The reversal of 2680707901549 is 9451097070862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2346542976649 + 334164924900 = 1531843^2 + 578070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2680707901549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2680707901493 and 2680707901502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680707901519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340353950774 + 1340353950775.

It is an arithmetic number, because the mean of its divisors is an integer number (1340353950775).

Almost surely, 2^{2680707901549} is an apocalyptic number.

It is an amenable number.

2680707901549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680707901549 is an equidigital number, since it uses as much as digits as its factorization.

2680707901549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 2680707901549 in words is "two trillion, six hundred eighty billion, seven hundred seven million, nine hundred one thousand, five hundred forty-nine".