173243552328 has 480 divisors, whose sum is σ = 625295436480. Its totient is φ = 43534713600.

The previous prime is 173243552311. The next prime is 173243552431. The reversal of 173243552328 is 823255342371.

It is a happy number.

173243552328 is a `hidden beast` number, since 1 + 7 + 32 + 43 + 552 + 3 + 28 = 666.

173243552328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 47948250 + ... + 47951862.

It is an arithmetic number, because the mean of its divisors is an integer number (1302698826).

Almost surely, 2^173243552328 is an apocalyptic number.

173243552328 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 173243552328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312647718240).

173243552328 is an abundant number, since it is smaller than the sum of its proper divisors (452051884152).

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

173243552328 is a wasteful number, since it uses less digits than its factorization.

173243552328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711 (or 3667 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

Adding to 173243552328 its reverse (823255342371), we get a palindrome (996498894699).

The spelling of 173243552328 in words is "one hundred seventy-three billion, two hundred forty-three million, five hundred fifty-two thousand, three hundred twenty-eight".