6641876936 has 16 divisors (see below), whose sum is σ = 12563729100. Its totient is φ = 3291549184.

The previous prime is 6641876933. The next prime is 6641876953. The reversal of 6641876936 is 6396781466.

It can be written as a sum of positive squares in 2 ways, for example, as 5662562500 + 979314436 = 75250^2 + 31294^2 .

It is a super-2 number, since 2×6641876936² = 88229058465937496192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6641876933) 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, 3672701 + ... + 3674508.

Almost surely, 2^6641876936 is an apocalyptic number.

It is an amenable number.

6641876936 is a deficient number, since it is larger than the sum of its proper divisors (5921852164).

6641876936 is a wasteful number, since it uses less digits than its factorization.

6641876936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347328 (or 7347324 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 56.

The square root of 6641876936 is about 81497.7112316659. The cubic root of 6641876936 is about 1879.7363573257.

The spelling of 6641876936 in words is "six billion, six hundred forty-one million, eight hundred seventy-six thousand, nine hundred thirty-six".