51006010611109 has 2 divisors, whose sum is σ = 51006010611110. Its totient is φ = 51006010611108.

The previous prime is 51006010611053. The next prime is 51006010611197. The reversal of 51006010611109 is 90111601060015.

51006010611109 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., 49765927923009 + 1240082688100 = 7054497^2 + 1113590^2 .

It is a cyclic number.

It is not a de Polignac number, because 51006010611109 - 2⁷ = 51006010610981 is a prime.

It is a super-2 number, since 2×51006010611109² (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 (51006019611109) 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, 25503005305554 + 25503005305555.

It is an arithmetic number, because the mean of its divisors is an integer number (25503005305555).

Almost surely, 2^{51006010611109} is an apocalyptic number.

It is an amenable number.

51006010611109 is a deficient number, since it is larger than the sum of its proper divisors (1).

51006010611109 is an equidigital number, since it uses as much as digits as its factorization.

51006010611109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 31.

The spelling of 51006010611109 in words is "fifty-one trillion, six billion, ten million, six hundred eleven thousand, one hundred nine".