6873673561 has 4 divisors (see below), whose sum is σ = 6884073124. Its totient is φ = 6863274000.

The previous prime is 6873673511. The next prime is 6873673589. The reversal of 6873673561 is 1653763786.

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 4889505625 + 1984167936 = 69925^2 + 44544^2 .

It is a cyclic number.

It is not a de Polignac number, because 6873673561 - 2¹⁵ = 6873640793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6873673499 and 6873673508.

It is not an unprimeable number, because it can be changed into a prime (6873673511) 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, 5198790 + ... + 5200111.

It is an arithmetic number, because the mean of its divisors is an integer number (1721018281).

Almost surely, 2^6873673561 is an apocalyptic number.

It is an amenable number.

6873673561 is a deficient number, since it is larger than the sum of its proper divisors (10399563).

6873673561 is a wasteful number, since it uses less digits than its factorization.

6873673561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399562.

The product of its digits is 3810240, while the sum is 52.

The square root of 6873673561 is about 82907.6206449081. The cubic root of 6873673561 is about 1901.3539344071.

The spelling of 6873673561 in words is "six billion, eight hundred seventy-three million, six hundred seventy-three thousand, five hundred sixty-one".