11787168247 has 2 divisors, whose sum is σ = 11787168248. Its totient is φ = 11787168246.

The previous prime is 11787168241. The next prime is 11787168251. The reversal of 11787168247 is 74286178711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11787168247 - 2⁷ = 11787168119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11787168194 and 11787168203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11787168241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5893584123 + 5893584124.

It is an arithmetic number, because the mean of its divisors is an integer number (5893584124).

Almost surely, 2^11787168247 is an apocalyptic number.

11787168247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11787168247 is an equidigital number, since it uses as much as digits as its factorization.

11787168247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1053696, while the sum is 52.

The spelling of 11787168247 in words is "eleven billion, seven hundred eighty-seven million, one hundred sixty-eight thousand, two hundred forty-seven".