11641986439 has 2 divisors, whose sum is σ = 11641986440. Its totient is φ = 11641986438.

The previous prime is 11641986437. The next prime is 11641986479. The reversal of 11641986439 is 93468914611.

It is a weak prime.

It is an emirp because it is prime and its reverse (93468914611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11641986439 - 2¹ = 11641986437 is a prime.

Together with 11641986437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11641986437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820993219 + 5820993220.

It is an arithmetic number, because the mean of its divisors is an integer number (5820993220).

Almost surely, 2^11641986439 is an apocalyptic number.

11641986439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11641986439 is an equidigital number, since it uses as much as digits as its factorization.

11641986439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The spelling of 11641986439 in words is "eleven billion, six hundred forty-one million, nine hundred eighty-six thousand, four hundred thirty-nine".