2626405679 has 2 divisors, whose sum is σ = 2626405680. Its totient is φ = 2626405678.

The previous prime is 2626405657. The next prime is 2626405681. The reversal of 2626405679 is 9765046262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2626405679 is a prime.

Together with 2626405681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2626405609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1313202839 + 1313202840.

It is an arithmetic number, because the mean of its divisors is an integer number (1313202840).

Almost surely, 2^2626405679 is an apocalyptic number.

2626405679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2626405679 is an equidigital number, since it uses as much as digits as its factorization.

2626405679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 2626405679 is about 51248.4700161868. The cubic root of 2626405679 is about 1379.7082767452.

The spelling of 2626405679 in words is "two billion, six hundred twenty-six million, four hundred five thousand, six hundred seventy-nine".