23173723217036 has 96 divisors (see below), whose sum is σ = 47698888753152. Its totient is φ = 9645543627840.

The previous prime is 23173723217033. The next prime is 23173723217093. The reversal of 23173723217036 is 63071232737132.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (23173723217033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91141595 + ... + 91395501.

It is an arithmetic number, because the mean of its divisors is an integer number (496863424512).

Almost surely, 2^{23173723217036} 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 23173723217036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23849444376576).

23173723217036 is an abundant number, since it is smaller than the sum of its proper divisors (24525165536116).

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

23173723217036 is a wasteful number, since it uses less digits than its factorization.

23173723217036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254499 (or 254497 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 47.

The spelling of 23173723217036 in words is "twenty-three trillion, one hundred seventy-three billion, seven hundred twenty-three million, two hundred seventeen thousand, thirty-six".