11272897208 has 8 divisors (see below), whose sum is σ = 21136682280. Its totient is φ = 5636448600.

The previous prime is 11272897193. The next prime is 11272897211. The reversal of 11272897208 is 80279827211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11272897208² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704556068 + ... + 704556083.

It is an arithmetic number, because the mean of its divisors is an integer number (2642085285).

Almost surely, 2^11272897208 is an apocalyptic number.

It is an amenable number.

11272897208 is a deficient number, since it is larger than the sum of its proper divisors (9863785072).

11272897208 is a wasteful number, since it uses less digits than its factorization.

11272897208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409112157 (or 1409112153 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 47.

The spelling of 11272897208 in words is "eleven billion, two hundred seventy-two million, eight hundred ninety-seven thousand, two hundred eight".