6422977807 has 2 divisors, whose sum is σ = 6422977808. Its totient is φ = 6422977806.

The previous prime is 6422977789. The next prime is 6422977819. The reversal of 6422977807 is 7087792246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6422977807 - 2³¹ = 4275494159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6422977837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211488903 + 3211488904.

It is an arithmetic number, because the mean of its divisors is an integer number (3211488904).

Almost surely, 2^6422977807 is an apocalyptic number.

6422977807 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422977807 is an equidigital number, since it uses as much as digits as its factorization.

6422977807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 6422977807 is about 80143.4826233550. The cubic root of 6422977807 is about 1858.8548281869.

The spelling of 6422977807 in words is "six billion, four hundred twenty-two million, nine hundred seventy-seven thousand, eight hundred seven".