42750541221 has 16 divisors (see below), whose sum is σ = 58557761664. Its totient is φ = 27722274624.

The previous prime is 42750541187. The next prime is 42750541241. The reversal of 42750541221 is 12214505724.

It is not a de Polignac number, because 42750541221 - 2⁶ = 42750541157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42750541241) 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 15 ways as a sum of consecutive naturals, for example, 355776 + ... + 460518.

It is an arithmetic number, because the mean of its divisors is an integer number (3659860104).

Almost surely, 2^42750541221 is an apocalyptic number.

It is an amenable number.

42750541221 is a deficient number, since it is larger than the sum of its proper divisors (15807220443).

42750541221 is a wasteful number, since it uses less digits than its factorization.

42750541221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108460.

The product of its (nonzero) digits is 22400, while the sum is 33.

The spelling of 42750541221 in words is "forty-two billion, seven hundred fifty million, five hundred forty-one thousand, two hundred twenty-one".