11478364771 has 2 divisors, whose sum is σ = 11478364772. Its totient is φ = 11478364770.

The previous prime is 11478364687. The next prime is 11478364801. The reversal of 11478364771 is 17746387411.

It is a happy number.

11478364771 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 11478364771 - 2⁷ = 11478364643 is a prime.

It is a super-2 number, since 2×11478364771² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11478362771) 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, 5739182385 + 5739182386.

It is an arithmetic number, because the mean of its divisors is an integer number (5739182386).

Almost surely, 2^11478364771 is an apocalyptic number.

11478364771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11478364771 is an equidigital number, since it uses as much as digits as its factorization.

11478364771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 49.

The spelling of 11478364771 in words is "eleven billion, four hundred seventy-eight million, three hundred sixty-four thousand, seven hundred seventy-one".