2611256807 has 2 divisors, whose sum is σ = 2611256808. Its totient is φ = 2611256806.

The previous prime is 2611256803. The next prime is 2611256881. The reversal of 2611256807 is 7086521162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2611256807 - 2² = 2611256803 is a prime.

It is a super-2 number, since 2×2611256807² = 13637324224207670498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2611256801) 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, 1305628403 + 1305628404.

It is an arithmetic number, because the mean of its divisors is an integer number (1305628404).

Almost surely, 2^2611256807 is an apocalyptic number.

2611256807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611256807 is an equidigital number, since it uses as much as digits as its factorization.

2611256807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 2611256807 is about 51100.4579920767. The cubic root of 2611256807 is about 1377.0504824078.

Adding to 2611256807 its reverse (7086521162), we get a palindrome (9697777969).

The spelling of 2611256807 in words is "two billion, six hundred eleven million, two hundred fifty-six thousand, eight hundred seven".