2543538682 has 4 divisors (see below), whose sum is σ = 3815308026. Its totient is φ = 1271769340.

The previous prime is 2543538671. The next prime is 2543538707. The reversal of 2543538682 is 2868353452.

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

It can be written as a sum of positive squares in only one way, i.e., 2404038961 + 139499721 = 49031^2 + 11811^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635884669 + ... + 635884672.

Almost surely, 2^2543538682 is an apocalyptic number.

2543538682 is a deficient number, since it is larger than the sum of its proper divisors (1271769344).

2543538682 is a wasteful number, since it uses less digits than its factorization.

2543538682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271769343.

The product of its digits is 1382400, while the sum is 46.

The square root of 2543538682 is about 50433.5075321953. The cubic root of 2543538682 is about 1365.0423190375.

The spelling of 2543538682 in words is "two billion, five hundred forty-three million, five hundred thirty-eight thousand, six hundred eighty-two".