872235187328 has 24 divisors (see below), whose sum is σ = 1737677087505. Its totient is φ = 436112310528.

The previous prime is 872235187321. The next prime is 872235187339. The reversal of 872235187328 is 823781532278.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 739861463104 + 132373724224 = 860152^2 + 363832^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=660392.

It is a super-2 number, since 2×872235187328² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872235187321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10524998 + ... + 10607546.

Almost surely, 2^872235187328 is an apocalyptic number.

It is an amenable number.

872235187328 is a deficient number, since it is larger than the sum of its proper divisors (865441900177).

872235187328 is an frugal number, since it uses more digits than its factorization.

872235187328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165112 (or 82551 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 56.

The spelling of 872235187328 in words is "eight hundred seventy-two billion, two hundred thirty-five million, one hundred eighty-seven thousand, three hundred twenty-eight".