23128205448832 has 160 divisors (see below), whose sum is σ = 50907188649600. Its totient is φ = 10466316157440.

The previous prime is 23128205448767. The next prime is 23128205448833. The reversal of 23128205448832 is 23884450282132.

It is a self number, because there is not a number n which added to its sum of digits gives 23128205448832.

It is not an unprimeable number, because it can be changed into a prime (23128205448833) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 425381713 + ... + 425436079.

It is an arithmetic number, because the mean of its divisors is an integer number (318169929060).

Almost surely, 2^{23128205448832} is an apocalyptic number.

23128205448832 is a gapful number since it is divisible by the number (22) 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 23128205448832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25453594324800).

23128205448832 is an abundant number, since it is smaller than the sum of its proper divisors (27778983200768).

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

23128205448832 is an frugal number, since it uses more digits than its factorization.

23128205448832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54652 (or 54607 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 52.

The spelling of 23128205448832 in words is "twenty-three trillion, one hundred twenty-eight billion, two hundred five million, four hundred forty-eight thousand, eight hundred thirty-two".