51744288818 has 32 divisors (see below), whose sum is σ = 81951264000. Its totient is φ = 24435665280.

The previous prime is 51744288811. The next prime is 51744288829. The reversal of 51744288818 is 81888244715.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51744288811) 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 15 ways as a sum of consecutive naturals, for example, 22102328 + ... + 22104668.

It is an arithmetic number, because the mean of its divisors is an integer number (2560977000).

Almost surely, 2^51744288818 is an apocalyptic number.

51744288818 is a deficient number, since it is larger than the sum of its proper divisors (30206975182).

51744288818 is a wasteful number, since it uses less digits than its factorization.

51744288818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890.

The product of its digits is 4587520, while the sum is 56.

The spelling of 51744288818 in words is "fifty-one billion, seven hundred forty-four million, two hundred eighty-eight thousand, eight hundred eighteen".