6426677839 has 2 divisors, whose sum is σ = 6426677840. Its totient is φ = 6426677838.

The previous prime is 6426677771. The next prime is 6426677843. The reversal of 6426677839 is 9387766246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6426677839 - 2⁷ = 6426677711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6426677539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213338919 + 3213338920.

It is an arithmetic number, because the mean of its divisors is an integer number (3213338920).

Almost surely, 2^6426677839 is an apocalyptic number.

6426677839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426677839 is an equidigital number, since it uses as much as digits as its factorization.

6426677839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 58.

The square root of 6426677839 is about 80166.5630983392. The cubic root of 6426677839 is about 1859.2116980736.

The spelling of 6426677839 in words is "six billion, four hundred twenty-six million, six hundred seventy-seven thousand, eight hundred thirty-nine".