23236289856 has 672 divisors, whose sum is σ = 82012170240. Its totient is φ = 6454204416.

The previous prime is 23236289851. The next prime is 23236289873. The reversal of 23236289856 is 65898263232.

23236289856 is a `hidden beast` number, since 2 + 3 + 2 + 3 + 628 + 9 + 8 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23236289851) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 88350781 + ... + 88351043.

It is an arithmetic number, because the mean of its divisors is an integer number (122041920).

Almost surely, 2^23236289856 is an apocalyptic number.

23236289856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23236289856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41006085120).

23236289856 is an abundant number, since it is smaller than the sum of its proper divisors (58775880384).

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

23236289856 is a wasteful number, since it uses less digits than its factorization.

23236289856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 323 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 23236289856 in words is "twenty-three billion, two hundred thirty-six million, two hundred eighty-nine thousand, eight hundred fifty-six".