42450217361 has 4 divisors (see below), whose sum is σ = 42542300724. Its totient is φ = 42358134000.

The previous prime is 42450217343. The next prime is 42450217417. The reversal of 42450217361 is 16371205424.

42450217361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7502158225 + 34948059136 = 86615^2 + 186944^2 .

It is a cyclic number.

It is not a de Polignac number, because 42450217361 - 2²⁶ = 42383108497 is a prime.

It is a super-2 number, since 2×42450217361² (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 (42450217301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46040990 + ... + 46041911.

It is an arithmetic number, because the mean of its divisors is an integer number (10635575181).

Almost surely, 2^42450217361 is an apocalyptic number.

It is an amenable number.

42450217361 is a deficient number, since it is larger than the sum of its proper divisors (92083363).

42450217361 is an equidigital number, since it uses as much as digits as its factorization.

42450217361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92083362.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 42450217361 in words is "forty-two billion, four hundred fifty million, two hundred seventeen thousand, three hundred sixty-one".