6475787677 has 2 divisors, whose sum is σ = 6475787678. Its totient is φ = 6475787676.

The previous prime is 6475787657. The next prime is 6475787683. The reversal of 6475787677 is 7767875746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6231365721 + 244421956 = 78939^2 + 15634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6475787677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6475787657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3237893838 + 3237893839.

It is an arithmetic number, because the mean of its divisors is an integer number (3237893839).

Almost surely, 2^6475787677 is an apocalyptic number.

It is an amenable number.

6475787677 is a deficient number, since it is larger than the sum of its proper divisors (1).

6475787677 is an equidigital number, since it uses as much as digits as its factorization.

6475787677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96808320, while the sum is 64.

The square root of 6475787677 is about 80472.2789350469. The cubic root of 6475787677 is about 1863.9354448047.

The spelling of 6475787677 in words is "six billion, four hundred seventy-five million, seven hundred eighty-seven thousand, six hundred seventy-seven".