42241920869 has 16 divisors (see below), whose sum is σ = 45139198320. Its totient is φ = 39453442560.

The previous prime is 42241920857. The next prime is 42241920883. The reversal of 42241920869 is 96802914224.

It can be written as a sum of positive squares in 8 ways, for example, as 20898171844 + 21343749025 = 144562^2 + 146095^2 .

It is a cyclic number.

It is not a de Polignac number, because 42241920869 - 2⁸ = 42241920613 is a prime.

It is a super-2 number, since 2×42241920869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42241926869) 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, 71849 + ... + 299409.

It is an arithmetic number, because the mean of its divisors is an integer number (2821199895).

Almost surely, 2^42241920869 is an apocalyptic number.

It is an amenable number.

42241920869 is a deficient number, since it is larger than the sum of its proper divisors (2897277451).

42241920869 is a wasteful number, since it uses less digits than its factorization.

42241920869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227800.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 42241920869 in words is "forty-two billion, two hundred forty-one million, nine hundred twenty thousand, eight hundred sixty-nine".