42305472281 has 8 divisors (see below), whose sum is σ = 46338651720. Its totient is φ = 38443917568.

The previous prime is 42305472263. The next prime is 42305472289. The reversal of 42305472281 is 18227450324.

It is a happy number.

42305472281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5166015625 + 37139456656 = 71875^2 + 192716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42305472281 - 2¹⁸ = 42305210137 is a prime.

It is a super-2 number, since 2×42305472281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42305472289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42905666 + ... + 42906651.

It is an arithmetic number, because the mean of its divisors is an integer number (5792331465).

Almost surely, 2^42305472281 is an apocalyptic number.

It is an amenable number.

42305472281 is a deficient number, since it is larger than the sum of its proper divisors (4033179439).

42305472281 is a wasteful number, since it uses less digits than its factorization.

42305472281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85812363.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 42305472281 in words is "forty-two billion, three hundred five million, four hundred seventy-two thousand, two hundred eighty-one".