51144043332 has 12 divisors (see below), whose sum is σ = 119336101136. Its totient is φ = 17048014440.

The previous prime is 51144043229. The next prime is 51144043373. The reversal of 51144043332 is 23334044115.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51144043332.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2131001794 + ... + 2131001817.

Almost surely, 2^51144043332 is an apocalyptic number.

It is an amenable number.

51144043332 is an abundant number, since it is smaller than the sum of its proper divisors (68192057804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51144043332 is a wasteful number, since it uses less digits than its factorization.

51144043332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262003618 (or 4262003616 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 51144043332 its reverse (23334044115), we get a palindrome (74478087447).

The spelling of 51144043332 in words is "fifty-one billion, one hundred forty-four million, forty-three thousand, three hundred thirty-two".