23173432038 has 48 divisors (see below), whose sum is σ = 51634302720. Its totient is φ = 7505768448.

The previous prime is 23173432033. The next prime is 23173432039. The reversal of 23173432038 is 83023437132.

23173432038 is a `hidden beast` number, since 23 + 173 + 432 + 0 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 23173431993 and 23173432011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23173432033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489531 + ... + 534777.

It is an arithmetic number, because the mean of its divisors is an integer number (1075714640).

Almost surely, 2^23173432038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23173432038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25817151360).

23173432038 is an abundant number, since it is smaller than the sum of its proper divisors (28460870682).

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

23173432038 is a wasteful number, since it uses less digits than its factorization.

23173432038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46061 (or 46058 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 23173432038 in words is "twenty-three billion, one hundred seventy-three million, four hundred thirty-two thousand, thirty-eight".