51332818071 has 4 divisors (see below), whose sum is σ = 68443757432. Its totient is φ = 34221878712.

The previous prime is 51332818039. The next prime is 51332818079. The reversal of 51332818071 is 17081823315.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51332818071 - 2⁵ = 51332818039 is a prime.

It is a super-2 number, since 2×51332818071² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51332818079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8555469676 + ... + 8555469681.

It is an arithmetic number, because the mean of its divisors is an integer number (17110939358).

Almost surely, 2^51332818071 is an apocalyptic number.

51332818071 is a deficient number, since it is larger than the sum of its proper divisors (17110939361).

51332818071 is a wasteful number, since it uses less digits than its factorization.

51332818071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110939360.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 51332818071 in words is "fifty-one billion, three hundred thirty-two million, eight hundred eighteen thousand, seventy-one".