9113122872 has 48 divisors (see below), whose sum is σ = 28207286640. Its totient is φ = 2603749248.

The previous prime is 9113122787. The next prime is 9113122873. The reversal of 9113122872 is 2782213119.

9113122872 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 (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9113122873) 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 11 ways as a sum of consecutive naturals, for example, 9040293 + ... + 9041300.

It is an arithmetic number, because the mean of its divisors is an integer number (587651805).

Almost surely, 2^9113122872 is an apocalyptic number.

It is an amenable number.

9113122872 is an abundant number, since it is smaller than the sum of its proper divisors (19094163768).

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

9113122872 is a wasteful number, since it uses less digits than its factorization.

9113122872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18081612 (or 18081605 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 9113122872 is about 95462.6779008425. The cubic root of 9113122872 is about 2088.7625644237.

It can be divided in two parts, 91131 and 22872, that added together give a triangular number (114003 = T₄₇₇).

The spelling of 9113122872 in words is "nine billion, one hundred thirteen million, one hundred twenty-two thousand, eight hundred seventy-two".