6422776077491 has 2 divisors, whose sum is σ = 6422776077492. Its totient is φ = 6422776077490.

The previous prime is 6422776077467. The next prime is 6422776077493. The reversal of 6422776077491 is 1947706772246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6422776077491 - 2⁶ = 6422776077427 is a prime.

Together with 6422776077493, 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 (6422776077493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211388038745 + 3211388038746.

It is an arithmetic number, because the mean of its divisors is an integer number (3211388038746).

Almost surely, 2^{6422776077491} is an apocalyptic number.

6422776077491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422776077491 is an equidigital number, since it uses as much as digits as its factorization.

6422776077491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49787136, while the sum is 62.

The spelling of 6422776077491 in words is "six trillion, four hundred twenty-two billion, seven hundred seventy-six million, seventy-seven thousand, four hundred ninety-one".