6481606887 has 24 divisors (see below), whose sum is σ = 10713073280. Its totient is φ = 3699179280.

The previous prime is 6481606853. The next prime is 6481606891. The reversal of 6481606887 is 7886061846.

It is not a de Polignac number, because 6481606887 - 2⁸ = 6481606631 is a prime.

It is a super-2 number, since 2×6481606887² = 84022455675211661538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481606897) 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 23 ways as a sum of consecutive naturals, for example, 12337 + ... + 114522.

Almost surely, 2^6481606887 is an apocalyptic number.

6481606887 is a deficient number, since it is larger than the sum of its proper divisors (4231466393).

6481606887 is a wasteful number, since it uses less digits than its factorization.

6481606887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127683 (or 127680 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 6481606887 is about 80508.4274284376. The cubic root of 6481606887 is about 1864.4935948953.

The spelling of 6481606887 in words is "six billion, four hundred eighty-one million, six hundred six thousand, eight hundred eighty-seven".