51422673742829 has 2 divisors, whose sum is σ = 51422673742830. Its totient is φ = 51422673742828.

The previous prime is 51422673742751. The next prime is 51422673742841. The reversal of 51422673742829 is 92824737622415.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27241113367204 + 24181560375625 = 5219302^2 + 4917475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51422673742829 is a prime.

It is a super-2 number, since 2×51422673742829² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51422673742129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25711336871414 + 25711336871415.

It is an arithmetic number, because the mean of its divisors is an integer number (25711336871415).

Almost surely, 2^{51422673742829} is an apocalyptic number.

It is an amenable number.

51422673742829 is a deficient number, since it is larger than the sum of its proper divisors (1).

51422673742829 is an equidigital number, since it uses as much as digits as its factorization.

51422673742829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 62.

The spelling of 51422673742829 in words is "fifty-one trillion, four hundred twenty-two billion, six hundred seventy-three million, seven hundred forty-two thousand, eight hundred twenty-nine".