23181425856 has 224 divisors, whose sum is σ = 69153389760. Its totient is φ = 7614259200.

The previous prime is 23181425837. The next prime is 23181425887. The reversal of 23181425856 is 65852418132.

23181425856 is a `hidden beast` number, since 23 + 1 + 8 + 1 + 42 + 585 + 6 = 666.

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 31 ways as a sum of consecutive naturals, for example, 42848946 + ... + 42849486.

It is an arithmetic number, because the mean of its divisors is an integer number (308720490).

Almost surely, 2^23181425856 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 23181425856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34576694880).

23181425856 is an abundant number, since it is smaller than the sum of its proper divisors (45971963904).

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

23181425856 is a wasteful number, since it uses less digits than its factorization.

23181425856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 864 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 23181425856 in words is "twenty-three billion, one hundred eighty-one million, four hundred twenty-five thousand, eight hundred fifty-six".