11186738198 has 4 divisors (see below), whose sum is σ = 16780107300. Its totient is φ = 5593369098.

The previous prime is 11186738153. The next prime is 11186738207. The reversal of 11186738198 is 89183768111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89183768111 = 971 ⋅91847341.

It is a super-2 number, since 2×11186738198² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2796684548 + ... + 2796684551.

It is an arithmetic number, because the mean of its divisors is an integer number (4195026825).

Almost surely, 2^11186738198 is an apocalyptic number.

11186738198 is a deficient number, since it is larger than the sum of its proper divisors (5593369102).

11186738198 is an equidigital number, since it uses as much as digits as its factorization.

11186738198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593369101.

The product of its digits is 580608, while the sum is 53.

The spelling of 11186738198 in words is "eleven billion, one hundred eighty-six million, seven hundred thirty-eight thousand, one hundred ninety-eight".