51345060431611 has 2 divisors, whose sum is σ = 51345060431612. Its totient is φ = 51345060431610.

The previous prime is 51345060431591. The next prime is 51345060431657. The reversal of 51345060431611 is 11613406054315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51345060431611 - 2³⁹ = 50795304617723 is a prime.

It is not a weakly prime, because it can be changed into another prime (51345060431311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672530215805 + 25672530215806.

It is an arithmetic number, because the mean of its divisors is an integer number (25672530215806).

Almost surely, 2^{51345060431611} is an apocalyptic number.

51345060431611 is a deficient number, since it is larger than the sum of its proper divisors (1).

51345060431611 is an equidigital number, since it uses as much as digits as its factorization.

51345060431611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 51345060431611 its reverse (11613406054315), we get a palindrome (62958466485926).

The spelling of 51345060431611 in words is "fifty-one trillion, three hundred forty-five billion, sixty million, four hundred thirty-one thousand, six hundred eleven".