11778338895 has 32 divisors (see below), whose sum is σ = 19056945600. Its totient is φ = 6211482624.

The previous prime is 11778338881. The next prime is 11778338909. The reversal of 11778338895 is 59883387711.

11778338895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11778338881) and next prime (11778338909).

It is not a de Polignac number, because 11778338895 - 2¹⁰ = 11778337871 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 825139 + ... + 839291.

It is an arithmetic number, because the mean of its divisors is an integer number (595529550).

Almost surely, 2^11778338895 is an apocalyptic number.

11778338895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11778338895 is a deficient number, since it is larger than the sum of its proper divisors (7278606705).

11778338895 is a wasteful number, since it uses less digits than its factorization.

11778338895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14779.

The product of its digits is 10160640, while the sum is 60.

The spelling of 11778338895 in words is "eleven billion, seven hundred seventy-eight million, three hundred thirty-eight thousand, eight hundred ninety-five".