51333424341623 has 2 divisors, whose sum is σ = 51333424341624. Its totient is φ = 51333424341622.

The previous prime is 51333424341607. The next prime is 51333424341643. The reversal of 51333424341623 is 32614342433315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51333424341623 - 2⁴ = 51333424341607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51333424341643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25666712170811 + 25666712170812.

It is an arithmetic number, because the mean of its divisors is an integer number (25666712170812).

Almost surely, 2^{51333424341623} is an apocalyptic number.

51333424341623 is a deficient number, since it is larger than the sum of its proper divisors (1).

51333424341623 is an equidigital number, since it uses as much as digits as its factorization.

51333424341623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 44.

Adding to 51333424341623 its reverse (32614342433315), we get a palindrome (83947766774938).

The spelling of 51333424341623 in words is "fifty-one trillion, three hundred thirty-three billion, four hundred twenty-four million, three hundred forty-one thousand, six hundred twenty-three".