11217728870 has 8 divisors (see below), whose sum is σ = 20191911984. Its totient is φ = 4487091544.

The previous prime is 11217728869. The next prime is 11217728909. The reversal of 11217728870 is 7882771211.

11217728870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 560886434 + ... + 560886453.

It is an arithmetic number, because the mean of its divisors is an integer number (2523988998).

Almost surely, 2^11217728870 is an apocalyptic number.

11217728870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11217728870 is a deficient number, since it is larger than the sum of its proper divisors (8974183114).

11217728870 is a wasteful number, since it uses less digits than its factorization.

11217728870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121772894.

The product of its (nonzero) digits is 87808, while the sum is 44.

The spelling of 11217728870 in words is "eleven billion, two hundred seventeen million, seven hundred twenty-eight thousand, eight hundred seventy".