11866625839 has 2 divisors, whose sum is σ = 11866625840. Its totient is φ = 11866625838.

The previous prime is 11866625803. The next prime is 11866625857. The reversal of 11866625839 is 93852666811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11866625839 - 2⁹ = 11866625327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11866625839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11866625339) 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, 5933312919 + 5933312920.

It is an arithmetic number, because the mean of its divisors is an integer number (5933312920).

Almost surely, 2^11866625839 is an apocalyptic number.

11866625839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11866625839 is an equidigital number, since it uses as much as digits as its factorization.

11866625839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 55.

The spelling of 11866625839 in words is "eleven billion, eight hundred sixty-six million, six hundred twenty-five thousand, eight hundred thirty-nine".