173235078456 has 96 divisors (see below), whose sum is σ = 484265001600. Its totient is φ = 51214969600.

The previous prime is 173235078437. The next prime is 173235078463. The reversal of 173235078456 is 654870532371.

It is a junction number, because it is equal to n+sod(n) for n = 173235078399 and 173235078408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248605 + ... + 638963.

It is an arithmetic number, because the mean of its divisors is an integer number (5044427100).

Almost surely, 2^173235078456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 173235078456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242132500800).

173235078456 is an abundant number, since it is smaller than the sum of its proper divisors (311029923144).

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

173235078456 is a wasteful number, since it uses less digits than its factorization.

173235078456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390461 (or 390416 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 173235078456 in words is "one hundred seventy-three billion, two hundred thirty-five million, seventy-eight thousand, four hundred fifty-six".