2543470873 has 4 divisors (see below), whose sum is σ = 2543644980. Its totient is φ = 2543296768.

The previous prime is 2543470849. The next prime is 2543470883. The reversal of 2543470873 is 3780743452.

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 2149527769 + 393943104 = 46363^2 + 19848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543470873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543470883) 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, 62908 + ... + 95101.

It is an arithmetic number, because the mean of its divisors is an integer number (635911245).

Almost surely, 2^2543470873 is an apocalyptic number.

It is an amenable number.

2543470873 is a deficient number, since it is larger than the sum of its proper divisors (174107).

2543470873 is a wasteful number, since it uses less digits than its factorization.

2543470873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174106.

The product of its (nonzero) digits is 564480, while the sum is 43.

The square root of 2543470873 is about 50432.8352663223. The cubic root of 2543470873 is about 1365.0301885652.

The spelling of 2543470873 in words is "two billion, five hundred forty-three million, four hundred seventy thousand, eight hundred seventy-three".