2544032643 has 32 divisors (see below), whose sum is σ = 3710442816. Its totient is φ = 1543938048.

The previous prime is 2544032611. The next prime is 2544032719. The reversal of 2544032643 is 3462304452.

It is not a de Polignac number, because 2544032643 - 2⁵ = 2544032611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2544032243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322555 + ... + 330347.

It is an arithmetic number, because the mean of its divisors is an integer number (115951338).

Almost surely, 2^2544032643 is an apocalyptic number.

2544032643 is a deficient number, since it is larger than the sum of its proper divisors (1166410173).

2544032643 is a wasteful number, since it uses less digits than its factorization.

2544032643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023.

The product of its (nonzero) digits is 69120, while the sum is 33.

The square root of 2544032643 is about 50438.4044454223. The cubic root of 2544032643 is about 1365.1306780928.

Subtracting 2544032643 from its reverse (3462304452), we obtain a square (918271809 = 30303²).

The spelling of 2544032643 in words is "two billion, five hundred forty-four million, thirty-two thousand, six hundred forty-three".