172232788224 has 144 divisors (see below), whose sum is σ = 525812295680. Its totient is φ = 49027368960.

The previous prime is 172232788213. The next prime is 172232788291. The reversal of 172232788224 is 422887232271.

It is a Harshad number since it is a multiple of its sum of digits (48).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397787 + ... + 1516005.

Almost surely, 2^172232788224 is an apocalyptic number.

172232788224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172232788224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262906147840).

172232788224 is an abundant number, since it is smaller than the sum of its proper divisors (353579507456).

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

172232788224 is a wasteful number, since it uses less digits than its factorization.

172232788224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118516 (or 118502 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The spelling of 172232788224 in words is "one hundred seventy-two billion, two hundred thirty-two million, seven hundred eighty-eight thousand, two hundred twenty-four".