51328843171 has 2 divisors, whose sum is σ = 51328843172. Its totient is φ = 51328843170.

The previous prime is 51328843169. The next prime is 51328843207. The reversal of 51328843171 is 17134882315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51328843171 - 2¹ = 51328843169 is a prime.

It is a super-2 number, since 2×51328843171² (a number of 22 digits) contains 22 as substring.

Together with 51328843169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51328843141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25664421585 + 25664421586.

It is an arithmetic number, because the mean of its divisors is an integer number (25664421586).

Almost surely, 2^51328843171 is an apocalyptic number.

51328843171 is a deficient number, since it is larger than the sum of its proper divisors (1).

51328843171 is an equidigital number, since it uses as much as digits as its factorization.

51328843171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 43.

The spelling of 51328843171 in words is "fifty-one billion, three hundred twenty-eight million, eight hundred forty-three thousand, one hundred seventy-one".