9872044111 has 32 divisors (see below), whose sum is σ = 10840086720. Its totient is φ = 8957952000.

The previous prime is 9872044093. The next prime is 9872044139. The reversal of 9872044111 is 1114402789.

9872044111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a 15-Lehmer number, since φ(9872044111) divides (9872044111-1)¹⁵.

It is a cyclic number.

It is not a de Polignac number, because 9872044111 - 2²¹ = 9869946959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872044141) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18247501 + ... + 18248041.

It is an arithmetic number, because the mean of its divisors is an integer number (338752710).

Almost surely, 2^9872044111 is an apocalyptic number.

9872044111 is a deficient number, since it is larger than the sum of its proper divisors (968042609).

9872044111 is a wasteful number, since it uses less digits than its factorization.

9872044111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 9872044111 is about 99358.1607669949. The cubic root of 9872044111 is about 2145.2061288933.

The spelling of 9872044111 in words is "nine billion, eight hundred seventy-two million, forty-four thousand, one hundred eleven".