9872328672 has 72 divisors (see below), whose sum is σ = 29725886736. Its totient is φ = 3097199616.

The previous prime is 9872328671. The next prime is 9872328691. The reversal of 9872328672 is 2768232789.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872328671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1003308 + ... + 1013099.

It is an arithmetic number, because the mean of its divisors is an integer number (412859538).

Almost surely, 2^9872328672 is an apocalyptic number.

It is an amenable number.

9872328672 is an abundant number, since it is smaller than the sum of its proper divisors (19853558064).

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

9872328672 is a wasteful number, since it uses less digits than its factorization.

9872328672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016440 (or 2016429 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 9872328672 is about 99359.5927527886. The cubic root of 9872328672 is about 2145.2267405022.

The spelling of 9872328672 in words is "nine billion, eight hundred seventy-two million, three hundred twenty-eight thousand, six hundred seventy-two".