23428788432 has 160 divisors (see below), whose sum is σ = 73160555520. Its totient is φ = 6311208960.

The previous prime is 23428788401. The next prime is 23428788433. The reversal of 23428788432 is 23488782432.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23428788433) 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, 1338328 + ... + 1355720.

It is an arithmetic number, because the mean of its divisors is an integer number (457253472).

Almost surely, 2^23428788432 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 23428788432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36580277760).

23428788432 is an abundant number, since it is smaller than the sum of its proper divisors (49731767088).

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

23428788432 is a wasteful number, since it uses less digits than its factorization.

23428788432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17641 (or 17635 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 51.

The spelling of 23428788432 in words is "twenty-three billion, four hundred twenty-eight million, seven hundred eighty-eight thousand, four hundred thirty-two".