11638980071 has 2 divisors, whose sum is σ = 11638980072. Its totient is φ = 11638980070.

The previous prime is 11638980047. The next prime is 11638980097. The reversal of 11638980071 is 17008983611.

It is a weak prime.

It is an emirp because it is prime and its reverse (17008983611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11638980071 - 2¹⁸ = 11638717927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11638980671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819490035 + 5819490036.

It is an arithmetic number, because the mean of its divisors is an integer number (5819490036).

Almost surely, 2^11638980071 is an apocalyptic number.

11638980071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11638980071 is an equidigital number, since it uses as much as digits as its factorization.

11638980071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 11638980071 in words is "eleven billion, six hundred thirty-eight million, nine hundred eighty thousand, seventy-one".