23331391488 has 144 divisors (see below), whose sum is σ = 67922749440. Its totient is φ = 7715119104.

The previous prime is 23331391469. The next prime is 23331391537. The reversal of 23331391488 is 88419313332.

23331391488 is a `hidden beast` number, since 2 + 3 + 33 + 139 + 1 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2335881 + ... + 2345847.

It is an arithmetic number, because the mean of its divisors is an integer number (471685760).

Almost surely, 2^23331391488 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 23331391488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33961374720).

23331391488 is an abundant number, since it is smaller than the sum of its proper divisors (44591357952).

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

23331391488 is a wasteful number, since it uses less digits than its factorization.

23331391488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122 (or 10099 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 23331391488 in words is "twenty-three billion, three hundred thirty-one million, three hundred ninety-one thousand, four hundred eighty-eight".