51346061439853 has 2 divisors, whose sum is σ = 51346061439854. Its totient is φ = 51346061439852.

The previous prime is 51346061439851. The next prime is 51346061439857. The reversal of 51346061439853 is 35893416064315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41608653527529 + 9737407912324 = 6450477^2 + 3120482^2 .

It is a cyclic number.

It is not a de Polignac number, because 51346061439853 - 2¹ = 51346061439851 is a prime.

Together with 51346061439851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51346061439851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25673030719926 + 25673030719927.

It is an arithmetic number, because the mean of its divisors is an integer number (25673030719927).

Almost surely, 2^{51346061439853} is an apocalyptic number.

It is an amenable number.

51346061439853 is a deficient number, since it is larger than the sum of its proper divisors (1).

51346061439853 is an equidigital number, since it uses as much as digits as its factorization.

51346061439853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27993600, while the sum is 58.

The spelling of 51346061439853 in words is "fifty-one trillion, three hundred forty-six billion, sixty-one million, four hundred thirty-nine thousand, eight hundred fifty-three".