51726324249641 has 2 divisors, whose sum is σ = 51726324249642. Its totient is φ = 51726324249640.

The previous prime is 51726324249577. The next prime is 51726324249643. The reversal of 51726324249641 is 14694242362715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51031435289641 + 694888960000 = 7143629^2 + 833600^2 .

It is a cyclic number.

It is not a de Polignac number, because 51726324249641 - 2⁶ = 51726324249577 is a prime.

It is a super-3 number, since 3×51726324249641³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 51726324249643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51726324249643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25863162124820 + 25863162124821.

It is an arithmetic number, because the mean of its divisors is an integer number (25863162124821).

Almost surely, 2^{51726324249641} is an apocalyptic number.

It is an amenable number.

51726324249641 is a deficient number, since it is larger than the sum of its proper divisors (1).

51726324249641 is an equidigital number, since it uses as much as digits as its factorization.

51726324249641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 56.

The spelling of 51726324249641 in words is "fifty-one trillion, seven hundred twenty-six billion, three hundred twenty-four million, two hundred forty-nine thousand, six hundred forty-one".