9172611072 has 130 divisors (see below), whose sum is σ = 27402236928. Its totient is φ = 3057426432.

The previous prime is 9172611047. The next prime is 9172611073. The reversal of 9172611072 is 2701162719.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9172611073) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 317953 + ... + 345599.

Almost surely, 2^9172611072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9172611072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13701118464).

9172611072 is an abundant number, since it is smaller than the sum of its proper divisors (18229625856).

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

9172611072 is an equidigital number, since it uses as much as digits as its factorization.

9172611072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27683 (or 27652 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 9172611072 is about 95773.7493888592. The cubic root of 9172611072 is about 2093.2976848523.

The spelling of 9172611072 in words is "nine billion, one hundred seventy-two million, six hundred eleven thousand, seventy-two".