51471856127 has 2 divisors, whose sum is σ = 51471856128. Its totient is φ = 51471856126.

The previous prime is 51471856103. The next prime is 51471856129. The reversal of 51471856127 is 72165817415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51471856127 - 2¹⁸ = 51471593983 is a prime.

Together with 51471856129, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51471856129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25735928063 + 25735928064.

It is an arithmetic number, because the mean of its divisors is an integer number (25735928064).

Almost surely, 2^51471856127 is an apocalyptic number.

51471856127 is a deficient number, since it is larger than the sum of its proper divisors (1).

51471856127 is an equidigital number, since it uses as much as digits as its factorization.

51471856127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 47.

The spelling of 51471856127 in words is "fifty-one billion, four hundred seventy-one million, eight hundred fifty-six thousand, one hundred twenty-seven".