3597172128 has 144 divisors (see below), whose sum is σ = 11181040416. Its totient is φ = 1087941120.

The previous prime is 3597172127. The next prime is 3597172157. The reversal of 3597172128 is 8212717953.

3597172128 is a `hidden beast` number, since 3 + 597 + 17 + 21 + 28 = 666.

3597172128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (3597172127) 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, 2619250 + ... + 2620622.

It is an arithmetic number, because the mean of its divisors is an integer number (77646114).

Almost surely, 2^3597172128 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 3597172128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5590520208).

3597172128 is an abundant number, since it is smaller than the sum of its proper divisors (7583868288).

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

3597172128 is a wasteful number, since it uses less digits than its factorization.

3597172128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2216 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 3597172128 is about 59976.4297703690. The cubic root of 3597172128 is about 1532.2174587410.

The spelling of 3597172128 in words is "three billion, five hundred ninety-seven million, one hundred seventy-two thousand, one hundred twenty-eight".