2868836113889 has 2 divisors, whose sum is σ = 2868836113890. Its totient is φ = 2868836113888.

The previous prime is 2868836113849. The next prime is 2868836113901. The reversal of 2868836113889 is 9883116388682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2680397644864 + 188438469025 = 1637192^2 + 434095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2868836113889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2868836113849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434418056944 + 1434418056945.

It is an arithmetic number, because the mean of its divisors is an integer number (1434418056945).

Almost surely, 2^{2868836113889} is an apocalyptic number.

It is an amenable number.

2868836113889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868836113889 is an equidigital number, since it uses as much as digits as its factorization.

2868836113889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 191102976, while the sum is 71.

The spelling of 2868836113889 in words is "two trillion, eight hundred sixty-eight billion, eight hundred thirty-six million, one hundred thirteen thousand, eight hundred eighty-nine".