172434828331 has 8 divisors (see below), whose sum is σ = 178666086960. Its totient is φ = 166313857632.

The previous prime is 172434828329. The next prime is 172434828347. The reversal of 172434828331 is 133828434271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172434828331 - 2¹ = 172434828329 is a prime.

It is a super-2 number, since 2×172434828331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172434828431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27568800 + ... + 27575053.

It is an arithmetic number, because the mean of its divisors is an integer number (22333260870).

Almost surely, 2^172434828331 is an apocalyptic number.

172434828331 is a deficient number, since it is larger than the sum of its proper divisors (6231258629).

172434828331 is an equidigital number, since it uses as much as digits as its factorization.

172434828331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55143965.

The product of its digits is 774144, while the sum is 46.

The spelling of 172434828331 in words is "one hundred seventy-two billion, four hundred thirty-four million, eight hundred twenty-eight thousand, three hundred thirty-one".