11745915187 has 2 divisors, whose sum is σ = 11745915188. Its totient is φ = 11745915186.

The previous prime is 11745915161. The next prime is 11745915191. The reversal of 11745915187 is 78151954711.

It is a happy number.

11745915187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11745915187 - 2³¹ = 9598431539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11745915187.

It is not a weakly prime, because it can be changed into another prime (11745918187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5872957593 + 5872957594.

It is an arithmetic number, because the mean of its divisors is an integer number (5872957594).

Almost surely, 2^11745915187 is an apocalyptic number.

11745915187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11745915187 is an equidigital number, since it uses as much as digits as its factorization.

11745915187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 49.

The spelling of 11745915187 in words is "eleven billion, seven hundred forty-five million, nine hundred fifteen thousand, one hundred eighty-seven".