42521141433 has 16 divisors (see below), whose sum is σ = 56773085760. Its totient is φ = 28308344064.

The previous prime is 42521141347. The next prime is 42521141437. The reversal of 42521141433 is 33414112524.

42521141433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42521141433 - 2¹³ = 42521133241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42521141433.

It is not an unprimeable number, because it can be changed into a prime (42521141437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12384285 + ... + 12387717.

It is an arithmetic number, because the mean of its divisors is an integer number (3548317860).

Almost surely, 2^42521141433 is an apocalyptic number.

It is an amenable number.

42521141433 is a deficient number, since it is larger than the sum of its proper divisors (14251944327).

42521141433 is a wasteful number, since it uses less digits than its factorization.

42521141433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928.

The product of its digits is 11520, while the sum is 30.

Adding to 42521141433 its reverse (33414112524), we get a palindrome (75935253957).

The spelling of 42521141433 in words is "forty-two billion, five hundred twenty-one million, one hundred forty-one thousand, four hundred thirty-three".