23033479128 has 128 divisors (see below), whose sum is σ = 64277176320. Its totient is φ = 6818348160.

The previous prime is 23033479121. The next prime is 23033479153. The reversal of 23033479128 is 82197433032.

It is a self number, because there is not a number n which added to its sum of digits gives 23033479128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23033479121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7976901 + ... + 7979787.

It is an arithmetic number, because the mean of its divisors is an integer number (502165440).

Almost surely, 2^23033479128 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 23033479128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32138588160).

23033479128 is an abundant number, since it is smaller than the sum of its proper divisors (41243697192).

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

23033479128 is a wasteful number, since it uses less digits than its factorization.

23033479128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 23033479128 in words is "twenty-three billion, thirty-three million, four hundred seventy-nine thousand, one hundred twenty-eight".