51044443451 has 2 divisors, whose sum is σ = 51044443452. Its totient is φ = 51044443450.

The previous prime is 51044443447. The next prime is 51044443469. The reversal of 51044443451 is 15434444015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51044443451 - 2² = 51044443447 is a prime.

It is not a weakly prime, because it can be changed into another prime (51044445451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25522221725 + 25522221726.

It is an arithmetic number, because the mean of its divisors is an integer number (25522221726).

Almost surely, 2^51044443451 is an apocalyptic number.

51044443451 is a deficient number, since it is larger than the sum of its proper divisors (1).

51044443451 is an equidigital number, since it uses as much as digits as its factorization.

51044443451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 51044443451 its reverse (15434444015), we get a palindrome (66478887466).

The spelling of 51044443451 in words is "fifty-one billion, forty-four million, four hundred forty-three thousand, four hundred fifty-one".