6862442687 has 4 divisors (see below), whose sum is σ = 6863114880. Its totient is φ = 6861770496.

The previous prime is 6862442641. The next prime is 6862442701. The reversal of 6862442687 is 7862442686.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6862442687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6862442617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320543 + ... + 341280.

It is an arithmetic number, because the mean of its divisors is an integer number (1715778720).

Almost surely, 2^6862442687 is an apocalyptic number.

6862442687 is a deficient number, since it is larger than the sum of its proper divisors (672193).

6862442687 is a wasteful number, since it uses less digits than its factorization.

6862442687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672192.

The product of its digits is 6193152, while the sum is 53.

The square root of 6862442687 is about 82839.8617031680. The cubic root of 6862442687 is about 1900.3178311333.

Subtracting 6862442687 from its reverse (7862442686), we obtain a palindrome (999999999).

The spelling of 6862442687 in words is "six billion, eight hundred sixty-two million, four hundred forty-two thousand, six hundred eighty-seven".