6477657677 has 4 divisors (see below), whose sum is σ = 6479073216. Its totient is φ = 6476242140.

The previous prime is 6477657671. The next prime is 6477657763. The reversal of 6477657677 is 7767567746.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6477657677 - 2⁴ = 6477657661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6477657671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700883 + ... + 710064.

It is an arithmetic number, because the mean of its divisors is an integer number (1619768304).

Almost surely, 2^6477657677 is an apocalyptic number.

It is an amenable number.

6477657677 is a deficient number, since it is larger than the sum of its proper divisors (1415539).

6477657677 is a wasteful number, since it uses less digits than its factorization.

6477657677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415538.

The product of its digits is 72606240, while the sum is 62.

The square root of 6477657677 is about 80483.8970043076. The cubic root of 6477657677 is about 1864.1148424833.

The spelling of 6477657677 in words is "six billion, four hundred seventy-seven million, six hundred fifty-seven thousand, six hundred seventy-seven".