11138227279 has 16 divisors (see below), whose sum is σ = 11355144192. Its totient is φ = 10923873408.

The previous prime is 11138227249. The next prime is 11138227307. The reversal of 11138227279 is 97272283111.

It is a cyclic number.

It is not a de Polignac number, because 11138227279 - 2⁷ = 11138227151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138227249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7217782 + ... + 7219324.

It is an arithmetic number, because the mean of its divisors is an integer number (709696512).

Almost surely, 2^11138227279 is an apocalyptic number.

11138227279 is a deficient number, since it is larger than the sum of its proper divisors (216916913).

11138227279 is a wasteful number, since it uses less digits than its factorization.

11138227279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its digits is 84672, while the sum is 43.

The spelling of 11138227279 in words is "eleven billion, one hundred thirty-eight million, two hundred twenty-seven thousand, two hundred seventy-nine".