2543944912 has 20 divisors (see below), whose sum is σ = 4959136960. Its totient is φ = 1264167648.

The previous prime is 2543944817. The next prime is 2543944913. The reversal of 2543944912 is 2194493452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543944913) 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, 485112 + ... + 490327.

It is an arithmetic number, because the mean of its divisors is an integer number (247956848).

Almost surely, 2^2543944912 is an apocalyptic number.

It is an amenable number.

2543944912 is a deficient number, since it is larger than the sum of its proper divisors (2415192048).

2543944912 is a wasteful number, since it uses less digits than its factorization.

2543944912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975610 (or 975604 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 2543944912 is about 50437.5347533957. The cubic root of 2543944912 is about 1365.1149857291.

The spelling of 2543944912 in words is "two billion, five hundred forty-three million, nine hundred forty-four thousand, nine hundred twelve".