51345060455867 has 2 divisors, whose sum is σ = 51345060455868. Its totient is φ = 51345060455866.

The previous prime is 51345060455861. The next prime is 51345060455881. The reversal of 51345060455867 is 76855406054315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51345060455867 - 2³⁸ = 51070182548923 is a prime.

It is not a weakly prime, because it can be changed into another prime (51345060455861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672530227933 + 25672530227934.

It is an arithmetic number, because the mean of its divisors is an integer number (25672530227934).

Almost surely, 2^{51345060455867} is an apocalyptic number.

51345060455867 is a deficient number, since it is larger than the sum of its proper divisors (1).

51345060455867 is an equidigital number, since it uses as much as digits as its factorization.

51345060455867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480000, while the sum is 59.

The spelling of 51345060455867 in words is "fifty-one trillion, three hundred forty-five billion, sixty million, four hundred fifty-five thousand, eight hundred sixty-seven".