51366266267 has 2 divisors, whose sum is σ = 51366266268. Its totient is φ = 51366266266.

The previous prime is 51366266257. The next prime is 51366266317. The reversal of 51366266267 is 76266266315.

It is an a-pointer prime, because the next prime (51366266317) can be obtained adding 51366266267 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51366266267 is a prime.

It is not a weakly prime, because it can be changed into another prime (51366266257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25683133133 + 25683133134.

It is an arithmetic number, because the mean of its divisors is an integer number (25683133134).

Almost surely, 2^51366266267 is an apocalyptic number.

51366266267 is a deficient number, since it is larger than the sum of its proper divisors (1).

51366266267 is an equidigital number, since it uses as much as digits as its factorization.

51366266267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 50.

The spelling of 51366266267 in words is "fifty-one billion, three hundred sixty-six million, two hundred sixty-six thousand, two hundred sixty-seven".