51871717171 has 8 divisors (see below), whose sum is σ = 52218993680. Its totient is φ = 51524654688.

The previous prime is 51871717147. The next prime is 51871717207. The reversal of 51871717171 is 17171717815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51871717171 - 2¹⁹ = 51871192883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51871717571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448525 + ... + 552193.

It is an arithmetic number, because the mean of its divisors is an integer number (6527374210).

Almost surely, 2^51871717171 is an apocalyptic number.

51871717171 is a deficient number, since it is larger than the sum of its proper divisors (347276509).

51871717171 is a wasteful number, since it uses less digits than its factorization.

51871717171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107013.

The product of its digits is 96040, while the sum is 46.

The spelling of 51871717171 in words is "fifty-one billion, eight hundred seventy-one million, seven hundred seventeen thousand, one hundred seventy-one".