6486878767 has 4 divisors (see below), whose sum is σ = 6609272760. Its totient is φ = 6364484776.

The previous prime is 6486878753. The next prime is 6486878789. The reversal of 6486878767 is 7678786846.

6486878767 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6486878767 - 2⁷ = 6486878639 is a prime.

It is a super-2 number, since 2×6486878767² = 84159192275510880578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6496878767) 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, 61196917 + ... + 61197022.

It is an arithmetic number, because the mean of its divisors is an integer number (1652318190).

Almost surely, 2^6486878767 is an apocalyptic number.

6486878767 is a deficient number, since it is larger than the sum of its proper divisors (122393993).

6486878767 is a wasteful number, since it uses less digits than its factorization.

6486878767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122393992.

The product of its digits is 151732224, while the sum is 67.

The square root of 6486878767 is about 80541.1619422020. The cubic root of 6486878767 is about 1864.9989594304.

The spelling of 6486878767 in words is "six billion, four hundred eighty-six million, eight hundred seventy-eight thousand, seven hundred sixty-seven".