6408867867 has 16 divisors (see below), whose sum is σ = 8968243968. Its totient is φ = 4063183520.

The previous prime is 6408867841. The next prime is 6408867901. The reversal of 6408867867 is 7687688046.

It is a cyclic number.

It is not a de Polignac number, because 6408867867 - 2¹⁴ = 6408851483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6408867867.

It is not an unprimeable number, because it can be changed into a prime (6408867467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256509 + ... + 280382.

It is an arithmetic number, because the mean of its divisors is an integer number (560515248).

Almost surely, 2^6408867867 is an apocalyptic number.

6408867867 is a deficient number, since it is larger than the sum of its proper divisors (2559376101).

6408867867 is a wasteful number, since it uses less digits than its factorization.

6408867867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537090.

The product of its (nonzero) digits is 21676032, while the sum is 60.

The square root of 6408867867 is about 80055.4049830491. The cubic root of 6408867867 is about 1857.4926583642.

The spelling of 6408867867 in words is "six billion, four hundred eight million, eight hundred sixty-seven thousand, eight hundred sixty-seven".