51352516646699 has 2 divisors, whose sum is σ = 51352516646700. Its totient is φ = 51352516646698.

The previous prime is 51352516646681. The next prime is 51352516646719. The reversal of 51352516646699 is 99664661525315.

51352516646699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51352516646699 - 2³⁶ = 51283797169963 is a prime.

It is not a weakly prime, because it can be changed into another prime (51352516646659) 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, 25676258323349 + 25676258323350.

It is an arithmetic number, because the mean of its divisors is an integer number (25676258323350).

Almost surely, 2^{51352516646699} is an apocalyptic number.

51352516646699 is a deficient number, since it is larger than the sum of its proper divisors (1).

51352516646699 is an equidigital number, since it uses as much as digits as its factorization.

51352516646699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928000, while the sum is 68.

The spelling of 51352516646699 in words is "fifty-one trillion, three hundred fifty-two billion, five hundred sixteen million, six hundred forty-six thousand, six hundred ninety-nine".