2543862136 has 32 divisors (see below), whose sum is σ = 4939185600. Its totient is φ = 1226834560.

The previous prime is 2543862109. The next prime is 2543862137. The reversal of 2543862136 is 6312683452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543862137) 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 7 ways as a sum of consecutive naturals, for example, 250926 + ... + 260866.

It is an arithmetic number, because the mean of its divisors is an integer number (154349550).

Almost surely, 2^2543862136 is an apocalyptic number.

It is an amenable number.

2543862136 is a deficient number, since it is larger than the sum of its proper divisors (2395323464).

2543862136 is a wasteful number, since it uses less digits than its factorization.

2543862136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079 (or 11075 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 2543862136 is about 50436.7141673603. The cubic root of 2543862136 is about 1365.1001793310.

The spelling of 2543862136 in words is "two billion, five hundred forty-three million, eight hundred sixty-two thousand, one hundred thirty-six".