51374347352039 has 2 divisors, whose sum is σ = 51374347352040. Its totient is φ = 51374347352038.

The previous prime is 51374347352021. The next prime is 51374347352093. The reversal of 51374347352039 is 93025374347315.

It is a happy number.

Together with next prime (51374347352093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51374347352039 - 2²⁸ = 51374078916583 is a prime.

It is a super-2 number, since 2×51374347352039² (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 (51374347352099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25687173676019 + 25687173676020.

It is an arithmetic number, because the mean of its divisors is an integer number (25687173676020).

Almost surely, 2^{51374347352039} is an apocalyptic number.

51374347352039 is a deficient number, since it is larger than the sum of its proper divisors (1).

51374347352039 is an equidigital number, since it uses as much as digits as its factorization.

51374347352039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28576800, while the sum is 56.

The spelling of 51374347352039 in words is "fifty-one trillion, three hundred seventy-four billion, three hundred forty-seven million, three hundred fifty-two thousand, thirty-nine".