6777426479 has 2 divisors, whose sum is σ = 6777426480. Its totient is φ = 6777426478.

The previous prime is 6777426443. The next prime is 6777426497. The reversal of 6777426479 is 9746247776.

Together with next prime (6777426497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6777426479 - 2²⁰ = 6776377903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6777416479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388713239 + 3388713240.

It is an arithmetic number, because the mean of its divisors is an integer number (3388713240).

Almost surely, 2^6777426479 is an apocalyptic number.

6777426479 is a deficient number, since it is larger than the sum of its proper divisors (1).

6777426479 is an equidigital number, since it uses as much as digits as its factorization.

6777426479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24893568, while the sum is 59.

The square root of 6777426479 is about 82325.1266564468. The cubic root of 6777426479 is about 1892.4377601922.

The spelling of 6777426479 in words is "six billion, seven hundred seventy-seven million, four hundred twenty-six thousand, four hundred seventy-nine".