51345060415867 has 2 divisors, whose sum is σ = 51345060415868. Its totient is φ = 51345060415866.

The previous prime is 51345060415819. The next prime is 51345060415919. The reversal of 51345060415867 is 76851406054315.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51345060415867 is a prime.

It is not a weakly prime, because it can be changed into another prime (51345060455867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672530207933 + 25672530207934.

It is an arithmetic number, because the mean of its divisors is an integer number (25672530207934).

Almost surely, 2^{51345060415867} is an apocalyptic number.

51345060415867 is a deficient number, since it is larger than the sum of its proper divisors (1).

51345060415867 is an equidigital number, since it uses as much as digits as its factorization.

51345060415867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 51345060415867 in words is "fifty-one trillion, three hundred forty-five billion, sixty million, four hundred fifteen thousand, eight hundred sixty-seven".