6874882561 has 4 divisors (see below), whose sum is σ = 6903648000. Its totient is φ = 6846117124.

The previous prime is 6874882549. The next prime is 6874882571. The reversal of 6874882561 is 1652884786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6874882561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6874882571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14382361 + ... + 14382838.

It is an arithmetic number, because the mean of its divisors is an integer number (1725912000).

Almost surely, 2^6874882561 is an apocalyptic number.

It is an amenable number.

6874882561 is a deficient number, since it is larger than the sum of its proper divisors (28765439).

6874882561 is a wasteful number, since it uses less digits than its factorization.

6874882561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28765438.

The product of its digits is 5160960, while the sum is 55.

The square root of 6874882561 is about 82914.9115720447. The cubic root of 6874882561 is about 1901.4654032903.

The spelling of 6874882561 in words is "six billion, eight hundred seventy-four million, eight hundred eighty-two thousand, five hundred sixty-one".