11874380009 has 2 divisors, whose sum is σ = 11874380010. Its totient is φ = 11874380008.

The previous prime is 11874379961. The next prime is 11874380041. The reversal of 11874380009 is 90008347811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6637686784 + 5236693225 = 81472^2 + 72365^2 .

It is an emirp because it is prime and its reverse (90008347811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11874380009 - 2¹² = 11874375913 is a prime.

It is not a weakly prime, because it can be changed into another prime (11874380909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5937190004 + 5937190005.

It is an arithmetic number, because the mean of its divisors is an integer number (5937190005).

Almost surely, 2^11874380009 is an apocalyptic number.

It is an amenable number.

11874380009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11874380009 is an equidigital number, since it uses as much as digits as its factorization.

11874380009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 11874380009 in words is "eleven billion, eight hundred seventy-four million, three hundred eighty thousand, nine".