51080026889 has 2 divisors, whose sum is σ = 51080026890. Its totient is φ = 51080026888.

The previous prime is 51080026867. The next prime is 51080026891. The reversal of 51080026889 is 98862008015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43288963600 + 7791063289 = 208060^2 + 88267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51080026889 is a prime.

Together with 51080026891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51080026819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25540013444 + 25540013445.

It is an arithmetic number, because the mean of its divisors is an integer number (25540013445).

Almost surely, 2^51080026889 is an apocalyptic number.

It is an amenable number.

51080026889 is a deficient number, since it is larger than the sum of its proper divisors (1).

51080026889 is an equidigital number, since it uses as much as digits as its factorization.

51080026889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 51080026889 in words is "fifty-one billion, eighty million, twenty-six thousand, eight hundred eighty-nine".