6875687563 has 4 divisors (see below), whose sum is σ = 7097483968. Its totient is φ = 6653891160.

The previous prime is 6875687549. The next prime is 6875687617. The reversal of 6875687563 is 3657865786.

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 6875687563 - 2¹⁷ = 6875556491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6875687503) 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, 110898156 + ... + 110898217.

It is an arithmetic number, because the mean of its divisors is an integer number (1774370992).

Almost surely, 2^6875687563 is an apocalyptic number.

6875687563 is a deficient number, since it is larger than the sum of its proper divisors (221796405).

6875687563 is a wasteful number, since it uses less digits than its factorization.

6875687563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221796404.

The product of its digits is 50803200, while the sum is 61.

The square root of 6875687563 is about 82919.7658161189. The cubic root of 6875687563 is about 1901.5396166168.

The spelling of 6875687563 in words is "six billion, eight hundred seventy-five million, six hundred eighty-seven thousand, five hundred sixty-three".