23173245017406 has 128 divisors (see below), whose sum is σ = 57020815134720. Its totient is φ = 6916806626400.

The previous prime is 23173245017401. The next prime is 23173245017413. The reversal of 23173245017406 is 60471054237132.

It is a happy number.

23173245017406 is a `hidden beast` number, since 2 + 3 + 1 + 73 + 2 + 4 + 501 + 74 + 0 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23173245017401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 825038295 + ... + 825066381.

It is an arithmetic number, because the mean of its divisors is an integer number (445475118240).

Almost surely, 2^{23173245017406} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23173245017406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28510407567360).

23173245017406 is an abundant number, since it is smaller than the sum of its proper divisors (33847570117314).

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

23173245017406 is a wasteful number, since it uses less digits than its factorization.

23173245017406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48907 (or 48901 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 23173245017406 in words is "twenty-three trillion, one hundred seventy-three billion, two hundred forty-five million, seventeen thousand, four hundred six".