173244943872 has 1440 divisors, whose sum is σ = 711665450496. Its totient is φ = 39171686400.

The previous prime is 173244943871. The next prime is 173244943903. The reversal of 173244943872 is 278349442371.

173244943872 is a `hidden beast` number, since 1 + 73 + 2 + 4 + 494 + 3 + 87 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173244943871) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2440069597 + ... + 2440069667.

Almost surely, 2^173244943872 is an apocalyptic number.

173244943872 is a gapful number since it is divisible by the number (12) 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 173244943872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355832725248).

173244943872 is an abundant number, since it is smaller than the sum of its proper divisors (538420506624).

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

173244943872 is a wasteful number, since it uses less digits than its factorization.

173244943872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 130 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 173244943872 in words is "one hundred seventy-three billion, two hundred forty-four million, nine hundred forty-three thousand, eight hundred seventy-two".