6842566887 has 32 divisors (see below), whose sum is σ = 10014164160. Its totient is φ = 4130611200.

The previous prime is 6842566867. The next prime is 6842566891. The reversal of 6842566887 is 7886652486.

It is not a de Polignac number, because 6842566887 - 2¹² = 6842562791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6842566887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6842566817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421383 + ... + 437319.

It is an arithmetic number, because the mean of its divisors is an integer number (312942630).

Almost surely, 2^6842566887 is an apocalyptic number.

6842566887 is a deficient number, since it is larger than the sum of its proper divisors (3171597273).

6842566887 is a wasteful number, since it uses less digits than its factorization.

6842566887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163.

The product of its digits is 30965760, while the sum is 60.

The square root of 6842566887 is about 82719.8095198484. The cubic root of 6842566887 is about 1898.4814169680.

The spelling of 6842566887 in words is "six billion, eight hundred forty-two million, five hundred sixty-six thousand, eight hundred eighty-seven".