2543143744 has 14 divisors (see below), whose sum is σ = 5046550994. Its totient is φ = 1271571840.

The previous prime is 2543143739. The next prime is 2543143789. The reversal of 2543143744 is 4473413452.

It can be written as a sum of positive squares in only one way, i.e., 1971360000 + 571783744 = 44400^2 + 23912^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19868247 + ... + 19868374.

Almost surely, 2^2543143744 is an apocalyptic number.

It is an amenable number.

2543143744 is a deficient number, since it is larger than the sum of its proper divisors (2503407250).

2543143744 is an equidigital number, since it uses as much as digits as its factorization.

2543143744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39736633 (or 39736623 counting only the distinct ones).

The product of its digits is 161280, while the sum is 37.

The square root of 2543143744 is about 50429.5919475857. The cubic root of 2543143744 is about 1364.9716648485.

The spelling of 2543143744 in words is "two billion, five hundred forty-three million, one hundred forty-three thousand, seven hundred forty-four".