11127138874 has 4 divisors (see below), whose sum is σ = 16690708314. Its totient is φ = 5563569436.

The previous prime is 11127138859. The next prime is 11127138917. The reversal of 11127138874 is 47883172111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7886683249 + 3240455625 = 88807^2 + 56925^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11127138874.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2781784717 + ... + 2781784720.

Almost surely, 2^11127138874 is an apocalyptic number.

11127138874 is a deficient number, since it is larger than the sum of its proper divisors (5563569440).

11127138874 is an equidigital number, since it uses as much as digits as its factorization.

11127138874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563569439.

The product of its digits is 75264, while the sum is 43.

The spelling of 11127138874 in words is "eleven billion, one hundred twenty-seven million, one hundred thirty-eight thousand, eight hundred seventy-four".