2681607791 has 2 divisors, whose sum is σ = 2681607792. Its totient is φ = 2681607790.

The previous prime is 2681607751. The next prime is 2681607809. The reversal of 2681607791 is 1977061862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2681607791 - 2¹⁸ = 2681345647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681607751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340803895 + 1340803896.

It is an arithmetic number, because the mean of its divisors is an integer number (1340803896).

Almost surely, 2^2681607791 is an apocalyptic number.

2681607791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681607791 is an equidigital number, since it uses as much as digits as its factorization.

2681607791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 2681607791 is about 51784.2426902238. The cubic root of 2681607791 is about 1389.3076259527.

The spelling of 2681607791 in words is "two billion, six hundred eighty-one million, six hundred seven thousand, seven hundred ninety-one".