51134243117 has 2 divisors, whose sum is σ = 51134243118. Its totient is φ = 51134243116.

The previous prime is 51134243113. The next prime is 51134243123. The reversal of 51134243117 is 71134243115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46668528841 + 4465714276 = 216029^2 + 66826^2 .

It is a cyclic number.

It is not a de Polignac number, because 51134243117 - 2² = 51134243113 is a prime.

It is a super-2 number, since 2×51134243117² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51134243113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25567121558 + 25567121559.

It is an arithmetic number, because the mean of its divisors is an integer number (25567121559).

Almost surely, 2^51134243117 is an apocalyptic number.

It is an amenable number.

51134243117 is a deficient number, since it is larger than the sum of its proper divisors (1).

51134243117 is an equidigital number, since it uses as much as digits as its factorization.

51134243117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The spelling of 51134243117 in words is "fifty-one billion, one hundred thirty-four million, two hundred forty-three thousand, one hundred seventeen".