51368767127 has 4 divisors (see below), whose sum is σ = 51369227520. Its totient is φ = 51368306736.

The previous prime is 51368767117. The next prime is 51368767159. The reversal of 51368767127 is 72176786315.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51368767127 - 2¹⁰ = 51368766103 is a prime.

It is a super-2 number, since 2×51368767127² (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 (51368767117) 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, 54698 + ... + 325160.

It is an arithmetic number, because the mean of its divisors is an integer number (12842306880).

Almost surely, 2^51368767127 is an apocalyptic number.

51368767127 is a deficient number, since it is larger than the sum of its proper divisors (460393).

51368767127 is a wasteful number, since it uses less digits than its factorization.

51368767127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460392.

The product of its digits is 2963520, while the sum is 53.

The spelling of 51368767127 in words is "fifty-one billion, three hundred sixty-eight million, seven hundred sixty-seven thousand, one hundred twenty-seven".