51541351189 has 2 divisors, whose sum is σ = 51541351190. Its totient is φ = 51541351188.

The previous prime is 51541351123. The next prime is 51541351229. The reversal of 51541351189 is 98115314515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51315840900 + 225510289 = 226530^2 + 15017^2 .

It is a cyclic number.

It is not a de Polignac number, because 51541351189 - 2¹¹ = 51541349141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51541351109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25770675594 + 25770675595.

It is an arithmetic number, because the mean of its divisors is an integer number (25770675595).

Almost surely, 2^51541351189 is an apocalyptic number.

It is an amenable number.

51541351189 is a deficient number, since it is larger than the sum of its proper divisors (1).

51541351189 is an equidigital number, since it uses as much as digits as its factorization.

51541351189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 43.

The spelling of 51541351189 in words is "fifty-one billion, five hundred forty-one million, three hundred fifty-one thousand, one hundred eighty-nine".