11268381949 has 24 divisors (see below), whose sum is σ = 13073012928. Its totient is φ = 9630627840.

The previous prime is 11268381913. The next prime is 11268381961. The reversal of 11268381949 is 94918386211.

It is not a de Polignac number, because 11268381949 - 2¹¹ = 11268379901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11268381896 and 11268381905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11268381989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4344397 + ... + 4346989.

It is an arithmetic number, because the mean of its divisors is an integer number (544708872).

Almost surely, 2^11268381949 is an apocalyptic number.

It is an amenable number.

11268381949 is a deficient number, since it is larger than the sum of its proper divisors (1804630979).

11268381949 is a wasteful number, since it uses less digits than its factorization.

11268381949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005 (or 3988 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The spelling of 11268381949 in words is "eleven billion, two hundred sixty-eight million, three hundred eighty-one thousand, nine hundred forty-nine".