51418268267 has 2 divisors, whose sum is σ = 51418268268. Its totient is φ = 51418268266.

The previous prime is 51418268249. The next prime is 51418268269. The reversal of 51418268267 is 76286281415.

51418268267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51418268267 is a prime.

Together with 51418268269, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51418268269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25709134133 + 25709134134.

It is an arithmetic number, because the mean of its divisors is an integer number (25709134134).

Almost surely, 2^51418268267 is an apocalyptic number.

51418268267 is a deficient number, since it is larger than the sum of its proper divisors (1).

51418268267 is an equidigital number, since it uses as much as digits as its factorization.

51418268267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 50.

The spelling of 51418268267 in words is "fifty-one billion, four hundred eighteen million, two hundred sixty-eight thousand, two hundred sixty-seven".