51943094171 has 2 divisors, whose sum is σ = 51943094172. Its totient is φ = 51943094170.

The previous prime is 51943094167. The next prime is 51943094183. The reversal of 51943094171 is 17149034915.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51943094171 - 2² = 51943094167 is a prime.

It is not a weakly prime, because it can be changed into another prime (51943094101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25971547085 + 25971547086.

It is an arithmetic number, because the mean of its divisors is an integer number (25971547086).

Almost surely, 2^51943094171 is an apocalyptic number.

51943094171 is a deficient number, since it is larger than the sum of its proper divisors (1).

51943094171 is an equidigital number, since it uses as much as digits as its factorization.

51943094171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 51943094171 in words is "fifty-one billion, nine hundred forty-three million, ninety-four thousand, one hundred seventy-one".