23845543020 has 480 divisors, whose sum is σ = 88519495680. Its totient is φ = 5316917760.

The previous prime is 23845543019. The next prime is 23845543031. The reversal of 23845543020 is 2034554832.

23845543020 is a `hidden beast` number, since 2 + 3 + 84 + 554 + 3 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 159 ways as a sum of consecutive naturals, for example, 9201925 + ... + 9204515.

It is an arithmetic number, because the mean of its divisors is an integer number (184415616).

Almost surely, 2^23845543020 is an apocalyptic number.

23845543020 is a gapful number since it is divisible by the number (20) 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 23845543020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44259747840).

23845543020 is an abundant number, since it is smaller than the sum of its proper divisors (64673952660).

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

23845543020 is a wasteful number, since it uses less digits than its factorization.

23845543020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 23845543020 in words is "twenty-three billion, eight hundred forty-five million, five hundred forty-three thousand, twenty".