51441562645441 has 2 divisors, whose sum is σ = 51441562645442. Its totient is φ = 51441562645440.

The previous prime is 51441562645427. The next prime is 51441562645519. The reversal of 51441562645441 is 14454626514415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48579784806400 + 2861777839041 = 6969920^2 + 1691679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51441562645441 is a prime.

It is not a weakly prime, because it can be changed into another prime (51441562645541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25720781322720 + 25720781322721.

It is an arithmetic number, because the mean of its divisors is an integer number (25720781322721).

Almost surely, 2^{51441562645441} is an apocalyptic number.

It is an amenable number.

51441562645441 is a deficient number, since it is larger than the sum of its proper divisors (1).

51441562645441 is an equidigital number, since it uses as much as digits as its factorization.

51441562645441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216000, while the sum is 52.

The spelling of 51441562645441 in words is "fifty-one trillion, four hundred forty-one billion, five hundred sixty-two million, six hundred forty-five thousand, four hundred forty-one".