51420174326189 has 2 divisors, whose sum is σ = 51420174326190. Its totient is φ = 51420174326188.

The previous prime is 51420174326149. The next prime is 51420174326233. The reversal of 51420174326189 is 98162347102415.

51420174326189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26676016403689 + 24744157922500 = 5164883^2 + 4974350^2 .

It is a cyclic number.

It is not a de Polignac number, because 51420174326189 - 2²⁴ = 51420157548973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51420174326189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51420174326149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25710087163094 + 25710087163095.

It is an arithmetic number, because the mean of its divisors is an integer number (25710087163095).

It is a 1-persistent number, because it is pandigital, but 2⋅51420174326189 = 102840348652378 is not.

Almost surely, 2^{51420174326189} is an apocalyptic number.

It is an amenable number.

51420174326189 is a deficient number, since it is larger than the sum of its proper divisors (1).

51420174326189 is an equidigital number, since it uses as much as digits as its factorization.

51420174326189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 51420174326189 in words is "fifty-one trillion, four hundred twenty billion, one hundred seventy-four million, three hundred twenty-six thousand, one hundred eighty-nine".