2543028866 has 16 divisors (see below), whose sum is σ = 4412003904. Its totient is φ = 1076738064.

The previous prime is 2543028863. The next prime is 2543028877. The reversal of 2543028866 is 6688203452.

It is not an unprimeable number, because it can be changed into a prime (2543028863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093085 + ... + 1095408.

It is an arithmetic number, because the mean of its divisors is an integer number (275750244).

Almost surely, 2^2543028866 is an apocalyptic number.

2543028866 is a deficient number, since it is larger than the sum of its proper divisors (1868975038).

2543028866 is a wasteful number, since it uses less digits than its factorization.

2543028866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188585.

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 2543028866 is about 50428.4529407754. The cubic root of 2543028866 is about 1364.9511118648.

The spelling of 2543028866 in words is "two billion, five hundred forty-three million, twenty-eight thousand, eight hundred sixty-six".