6807442885 has 4 divisors (see below), whose sum is σ = 8168931468. Its totient is φ = 5445954304.

The previous prime is 6807442847. The next prime is 6807442921. The reversal of 6807442885 is 5882447086.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3032815041 + 3774627844 = 55071^2 + 61438^2 .

It is a cyclic number.

It is not a de Polignac number, because 6807442885 - 2¹³ = 6807434693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680744284 + ... + 680744293.

It is an arithmetic number, because the mean of its divisors is an integer number (2042232867).

Almost surely, 2^6807442885 is an apocalyptic number.

It is an amenable number.

6807442885 is a deficient number, since it is larger than the sum of its proper divisors (1361488583).

6807442885 is a wasteful number, since it uses less digits than its factorization.

6807442885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361488582.

The product of its (nonzero) digits is 3440640, while the sum is 52.

The square root of 6807442885 is about 82507.2292893174. The cubic root of 6807442885 is about 1895.2274388614.

The spelling of 6807442885 in words is "six billion, eight hundred seven million, four hundred forty-two thousand, eight hundred eighty-five".