23547042144 has 144 divisors (see below), whose sum is σ = 69566515200. Its totient is φ = 7834942080.

The previous prime is 23547042139. The next prime is 23547042157. The reversal of 23547042144 is 44124074532.

23547042144 is a `hidden beast` number, since 2 + 3 + 5 + 470 + 42 + 144 = 666.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 23547042099 and 23547042108.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 4904257 + ... + 4909055.

It is an arithmetic number, because the mean of its divisors is an integer number (483100800).

Almost surely, 2^23547042144 is an apocalyptic number.

23547042144 is a gapful number since it is divisible by the number (24) 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 23547042144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34783257600).

23547042144 is an abundant number, since it is smaller than the sum of its proper divisors (46019473056).

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

23547042144 is an equidigital number, since it uses as much as digits as its factorization.

23547042144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455 (or 5435 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 23547042144 in words is "twenty-three billion, five hundred forty-seven million, forty-two thousand, one hundred forty-four".