51673036717 has 2 divisors, whose sum is σ = 51673036718. Its totient is φ = 51673036716.

The previous prime is 51673036697. The next prime is 51673036741. The reversal of 51673036717 is 71763037615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51633018441 + 40018276 = 227229^2 + 6326^2 .

It is a cyclic number.

It is not a de Polignac number, because 51673036717 - 2¹⁹ = 51672512429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51673036777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25836518358 + 25836518359.

It is an arithmetic number, because the mean of its divisors is an integer number (25836518359).

Almost surely, 2^51673036717 is an apocalyptic number.

It is an amenable number.

51673036717 is a deficient number, since it is larger than the sum of its proper divisors (1).

51673036717 is an equidigital number, since it uses as much as digits as its factorization.

51673036717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 51673036717 in words is "fifty-one billion, six hundred seventy-three million, thirty-six thousand, seven hundred seventeen".