51443444313 has 12 divisors (see below), whose sum is σ = 74467694080. Its totient is φ = 34221554136.

The previous prime is 51443444287. The next prime is 51443444329. The reversal of 51443444313 is 31344434415.

It is not a de Polignac number, because 51443444313 - 2⁹ = 51443443801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51443444363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6168553 + ... + 6176886.

Almost surely, 2^51443444313 is an apocalyptic number.

It is an amenable number.

51443444313 is a deficient number, since it is larger than the sum of its proper divisors (23024249767).

51443444313 is a wasteful number, since it uses less digits than its factorization.

51443444313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345908 (or 12345905 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 51443444313 its reverse (31344434415), we get a palindrome (82787878728).

The spelling of 51443444313 in words is "fifty-one billion, four hundred forty-three million, four hundred forty-four thousand, three hundred thirteen".