23855353472 has 64 divisors (see below), whose sum is σ = 48524582400. Its totient is φ = 11679012864.

The previous prime is 23855353469. The next prime is 23855353589. The reversal of 23855353472 is 27435355832.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289633 + ... + 1307999.

It is an arithmetic number, because the mean of its divisors is an integer number (758196600).

Almost surely, 2^23855353472 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 23855353472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24262291200).

23855353472 is an abundant number, since it is smaller than the sum of its proper divisors (24669228928).

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

23855353472 is a wasteful number, since it uses less digits than its factorization.

23855353472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593 (or 18581 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 47.

The spelling of 23855353472 in words is "twenty-three billion, eight hundred fifty-five million, three hundred fifty-three thousand, four hundred seventy-two".