11188888778 has 16 divisors (see below), whose sum is σ = 17041679424. Its totient is φ = 5508955680.

The previous prime is 11188888769. The next prime is 11188888801. The reversal of 11188888778 is 87788888111.

11188888778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 120803 + ... + 192278.

It is an arithmetic number, because the mean of its divisors is an integer number (1065104964).

Almost surely, 2^11188888778 is an apocalyptic number.

11188888778 is a deficient number, since it is larger than the sum of its proper divisors (5852790646).

11188888778 is a wasteful number, since it uses less digits than its factorization.

11188888778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313357.

The product of its digits is 12845056, while the sum is 65.

The spelling of 11188888778 in words is "eleven billion, one hundred eighty-eight million, eight hundred eighty-eight thousand, seven hundred seventy-eight".