11444816587 has 2 divisors, whose sum is σ = 11444816588. Its totient is φ = 11444816586.

The previous prime is 11444816569. The next prime is 11444816599. The reversal of 11444816587 is 78561844411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11444816587 - 2²³ = 11436427979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11444816587.

It is not a weakly prime, because it can be changed into another prime (11444816087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5722408293 + 5722408294.

It is an arithmetic number, because the mean of its divisors is an integer number (5722408294).

Almost surely, 2^11444816587 is an apocalyptic number.

11444816587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11444816587 is an equidigital number, since it uses as much as digits as its factorization.

11444816587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 860160, while the sum is 49.

The spelling of 11444816587 in words is "eleven billion, four hundred forty-four million, eight hundred sixteen thousand, five hundred eighty-seven".