4042750561 has 4 divisors (see below), whose sum is σ = 4051960000. Its totient is φ = 4033541124.

The previous prime is 4042750559. The next prime is 4042750571. The reversal of 4042750561 is 1650572404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4042750561 - 2¹ = 4042750559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042750571) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4604061 + ... + 4604938.

It is an arithmetic number, because the mean of its divisors is an integer number (1012990000).

Almost surely, 2^4042750561 is an apocalyptic number.

It is an amenable number.

4042750561 is a deficient number, since it is larger than the sum of its proper divisors (9209439).

4042750561 is an equidigital number, since it uses as much as digits as its factorization.

4042750561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209438.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 4042750561 is about 63582.6278239583. The cubic root of 4042750561 is about 1593.0362143244.

The spelling of 4042750561 in words is "four billion, forty-two million, seven hundred fifty thousand, five hundred sixty-one".