8000042544 has 160 divisors (see below), whose sum is σ = 25582737600. Its totient is φ = 2376622080.

The previous prime is 8000042513. The next prime is 8000042593. The reversal of 8000042544 is 4452400008.

8000042544 is a `hidden beast` number, since 80 + 0 + 0 + 0 + 42 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138304 + ... + 187424.

It is an arithmetic number, because the mean of its divisors is an integer number (159892110).

Almost surely, 2^8000042544 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 8000042544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12791368800).

8000042544 is an abundant number, since it is smaller than the sum of its proper divisors (17582695056).

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

8000042544 is a wasteful number, since it uses less digits than its factorization.

8000042544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49180 (or 49168 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 8000042544 is about 89442.9569278655. The cubic root of 8000042544 is about 2000.0035453270.

The spelling of 8000042544 in words is "eight billion, forty-two thousand, five hundred forty-four".