6627677977 has 2 divisors, whose sum is σ = 6627677978. Its totient is φ = 6627677976.

The previous prime is 6627677941. The next prime is 6627677993. The reversal of 6627677977 is 7797767266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3427399936 + 3200278041 = 58544^2 + 56571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6627677977 is a prime.

It is a super-4 number, since 4×6627677977⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6627677377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3313838988 + 3313838989.

It is an arithmetic number, because the mean of its divisors is an integer number (3313838989).

Almost surely, 2^6627677977 is an apocalyptic number.

It is an amenable number.

6627677977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6627677977 is an equidigital number, since it uses as much as digits as its factorization.

6627677977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65345616, while the sum is 64.

The square root of 6627677977 is about 81410.5520003396. The cubic root of 6627677977 is about 1878.3959058342.

The spelling of 6627677977 in words is "six billion, six hundred twenty-seven million, six hundred seventy-seven thousand, nine hundred seventy-seven".