172844568468 has 288 divisors, whose sum is σ = 531837250560. Its totient is φ = 48221395200.

The previous prime is 172844568437. The next prime is 172844568487. The reversal of 172844568468 is 864865448271.

It is a happy number.

172844568468 is a `hidden beast` number, since 1 + 7 + 2 + 8 + 4 + 4 + 568 + 4 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78315421 + ... + 78317627.

It is an arithmetic number, because the mean of its divisors is an integer number (1846657120).

Almost surely, 2^172844568468 is an apocalyptic number.

172844568468 is a gapful number since it is divisible by the number (18) 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 172844568468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265918625280).

172844568468 is an abundant number, since it is smaller than the sum of its proper divisors (358992682092).

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

172844568468 is a wasteful number, since it uses less digits than its factorization.

172844568468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2697 counting only the distinct ones).

The product of its digits is 82575360, while the sum is 63.

The spelling of 172844568468 in words is "one hundred seventy-two billion, eight hundred forty-four million, five hundred sixty-eight thousand, four hundred sixty-eight".