51407336816347 has 2 divisors, whose sum is σ = 51407336816348. Its totient is φ = 51407336816346.

The previous prime is 51407336816327. The next prime is 51407336816389. The reversal of 51407336816347 is 74361863370415.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51407336816347 - 2¹¹ = 51407336814299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51407336816291 and 51407336816300.

It is not a weakly prime, because it can be changed into another prime (51407336816327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25703668408173 + 25703668408174.

It is an arithmetic number, because the mean of its divisors is an integer number (25703668408174).

Almost surely, 2^{51407336816347} is an apocalyptic number.

51407336816347 is a deficient number, since it is larger than the sum of its proper divisors (1).

51407336816347 is an equidigital number, since it uses as much as digits as its factorization.

51407336816347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 58.

The spelling of 51407336816347 in words is "fifty-one trillion, four hundred seven billion, three hundred thirty-six million, eight hundred sixteen thousand, three hundred forty-seven".