2607317891 has 2 divisors, whose sum is σ = 2607317892. Its totient is φ = 2607317890.

The previous prime is 2607317849. The next prime is 2607317893. The reversal of 2607317891 is 1987137062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2607317891 - 2⁶ = 2607317827 is a prime.

Together with 2607317893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2607317893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303658945 + 1303658946.

It is an arithmetic number, because the mean of its divisors is an integer number (1303658946).

Almost surely, 2^2607317891 is an apocalyptic number.

2607317891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2607317891 is an equidigital number, since it uses as much as digits as its factorization.

2607317891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 2607317891 is about 51061.9025399563. The cubic root of 2607317891 is about 1376.3577360709.

The spelling of 2607317891 in words is "two billion, six hundred seven million, three hundred seventeen thousand, eight hundred ninety-one".