11943456178 has 16 divisors (see below), whose sum is σ = 17962294176. Its totient is φ = 5956040160.

The previous prime is 11943456163. The next prime is 11943456179. The reversal of 11943456178 is 87165434911.

It is a super-2 number, since 2×11943456178² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11943456179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661925 + ... + 2666407.

It is an arithmetic number, because the mean of its divisors is an integer number (1122643386).

Almost surely, 2^11943456178 is an apocalyptic number.

11943456178 is a deficient number, since it is larger than the sum of its proper divisors (6018837998).

11943456178 is a wasteful number, since it uses less digits than its factorization.

11943456178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7689.

The product of its digits is 725760, while the sum is 49.

The spelling of 11943456178 in words is "eleven billion, nine hundred forty-three million, four hundred fifty-six thousand, one hundred seventy-eight".