11227988436 has 48 divisors (see below), whose sum is σ = 31702559616. Its totient is φ = 3019290624.

The previous prime is 11227988399. The next prime is 11227988441. The reversal of 11227988436 is 63488972211.

It is a happy number.

11227988436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3929941 + ... + 3932796.

It is an arithmetic number, because the mean of its divisors is an integer number (660469992).

Almost surely, 2^11227988436 is an apocalyptic number.

It is an amenable number.

11227988436 is an abundant number, since it is smaller than the sum of its proper divisors (20474571180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11227988436 is a wasteful number, since it uses less digits than its factorization.

11227988436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862768 (or 7862766 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The spelling of 11227988436 in words is "eleven billion, two hundred twenty-seven million, nine hundred eighty-eight thousand, four hundred thirty-six".