11106728138 has 16 divisors (see below), whose sum is σ = 18190000224. Its totient is φ = 5044247760.

The previous prime is 11106728063. The next prime is 11106728173. The reversal of 11106728138 is 83182760111.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186545 + ... + 238772.

It is an arithmetic number, because the mean of its divisors is an integer number (1136875014).

Almost surely, 2^11106728138 is an apocalyptic number.

11106728138 is a deficient number, since it is larger than the sum of its proper divisors (7083272086).

11106728138 is a wasteful number, since it uses less digits than its factorization.

11106728138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426517.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 11106728138 in words is "eleven billion, one hundred six million, seven hundred twenty-eight thousand, one hundred thirty-eight".