51000228871 has 8 divisors (see below), whose sum is σ = 54504919440. Its totient is φ = 47551613568.

The previous prime is 51000228869. The next prime is 51000228919. The reversal of 51000228871 is 17882200015.

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 51000228871 - 2¹ = 51000228869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51000228271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14016936 + ... + 14020573.

It is an arithmetic number, because the mean of its divisors is an integer number (6813114930).

Almost surely, 2^51000228871 is an apocalyptic number.

51000228871 is a deficient number, since it is larger than the sum of its proper divisors (3504690569).

51000228871 is a wasteful number, since it uses less digits than its factorization.

51000228871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28037633.

The product of its (nonzero) digits is 8960, while the sum is 34.

Adding to 51000228871 its reverse (17882200015), we get a palindrome (68882428886).

The spelling of 51000228871 in words is "fifty-one billion, two hundred twenty-eight thousand, eight hundred seventy-one".