9219840113889 has 24 divisors (see below), whose sum is σ = 13386974103360. Its totient is φ = 6114561961248.

The previous prime is 9219840113863. The next prime is 9219840113963. The reversal of 9219840113889 is 9883110489129.

9219840113889 is a `hidden beast` number, since 9 + 2 + 1 + 98 + 401 + 138 + 8 + 9 = 666.

It is not a de Polignac number, because 9219840113889 - 2¹¹ = 9219840111841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9219840113689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562044 + ... + 4330770.

It is an arithmetic number, because the mean of its divisors is an integer number (557790587640).

Almost surely, 2^{9219840113889} is an apocalyptic number.

It is an amenable number.

9219840113889 is a deficient number, since it is larger than the sum of its proper divisors (4167133989471).

9219840113889 is a wasteful number, since it uses less digits than its factorization.

9219840113889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770149 (or 3770146 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The spelling of 9219840113889 in words is "nine trillion, two hundred nineteen billion, eight hundred forty million, one hundred thirteen thousand, eight hundred eighty-nine".