6422776601677 has 2 divisors, whose sum is σ = 6422776601678. Its totient is φ = 6422776601676.

The previous prime is 6422776601671. The next prime is 6422776601719. The reversal of 6422776601677 is 7761066772246.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6145312092676 + 277464509001 = 2478974^2 + 526749^2 .

It is a cyclic number.

It is not a de Polignac number, because 6422776601677 - 2³ = 6422776601669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6422776601671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211388300838 + 3211388300839.

It is an arithmetic number, because the mean of its divisors is an integer number (3211388300839).

Almost surely, 2^{6422776601677} is an apocalyptic number.

It is an amenable number.

6422776601677 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422776601677 is an equidigital number, since it uses as much as digits as its factorization.

6422776601677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49787136, while the sum is 61.

The spelling of 6422776601677 in words is "six trillion, four hundred twenty-two billion, seven hundred seventy-six million, six hundred one thousand, six hundred seventy-seven".