84442137115811 has 2 divisors, whose sum is σ = 84442137115812. Its totient is φ = 84442137115810.

The previous prime is 84442137115789. The next prime is 84442137115873. The reversal of 84442137115811 is 11851173124448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84442137115811 - 2⁶ = 84442137115747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84442137115811.

It is not a weakly prime, because it can be changed into another prime (84442137115411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42221068557905 + 42221068557906.

It is an arithmetic number, because the mean of its divisors is an integer number (42221068557906).

Almost surely, 2^{84442137115811} is an apocalyptic number.

84442137115811 is a deficient number, since it is larger than the sum of its proper divisors (1).

84442137115811 is an equidigital number, since it uses as much as digits as its factorization.

84442137115811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 860160, while the sum is 50.

The spelling of 84442137115811 in words is "eighty-four trillion, four hundred forty-two billion, one hundred thirty-seven million, one hundred fifteen thousand, eight hundred eleven".