6631887677 has 4 divisors (see below), whose sum is σ = 6696275040. Its totient is φ = 6567500316.

The previous prime is 6631887667. The next prime is 6631887727. The reversal of 6631887677 is 7767881366.

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 6631887677 - 2²⁴ = 6615110461 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 (6631887607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32193527 + ... + 32193732.

It is an arithmetic number, because the mean of its divisors is an integer number (1674068760).

Almost surely, 2^6631887677 is an apocalyptic number.

It is an amenable number.

6631887677 is a deficient number, since it is larger than the sum of its proper divisors (64387363).

6631887677 is a wasteful number, since it uses less digits than its factorization.

6631887677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64387362.

The product of its digits is 14224896, while the sum is 59.

The square root of 6631887677 is about 81436.4026526221. The cubic root of 6631887677 is about 1878.7935216943.

The spelling of 6631887677 in words is "six billion, six hundred thirty-one million, eight hundred eighty-seven thousand, six hundred seventy-seven".