11188840472 has 16 divisors (see below), whose sum is σ = 20981760000. Its totient is φ = 5593704480.

The previous prime is 11188840423. The next prime is 11188840483. The reversal of 11188840472 is 27404888111.

It is a happy number.

It is a super-2 number, since 2×11188840472² (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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19847 + ... + 150902.

It is an arithmetic number, because the mean of its divisors is an integer number (1311360000).

Almost surely, 2^11188840472 is an apocalyptic number.

It is an amenable number.

11188840472 is a deficient number, since it is larger than the sum of its proper divisors (9792919528).

11188840472 is a wasteful number, since it uses less digits than its factorization.

11188840472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178946 (or 178942 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 44.

The spelling of 11188840472 in words is "eleven billion, one hundred eighty-eight million, eight hundred forty thousand, four hundred seventy-two".