42132426065 has 4 divisors (see below), whose sum is σ = 50558911284. Its totient is φ = 33705940848.

The previous prime is 42132426031. The next prime is 42132426137. The reversal of 42132426065 is 56062423124.

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 8169990544 + 33962435521 = 90388^2 + 184289^2 .

It is a cyclic number.

It is not a de Polignac number, because 42132426065 - 2⁸ = 42132425809 is a prime.

It is a super-3 number, since 3×42132426065³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4213242602 + ... + 4213242611.

It is an arithmetic number, because the mean of its divisors is an integer number (12639727821).

Almost surely, 2^42132426065 is an apocalyptic number.

It is an amenable number.

42132426065 is a deficient number, since it is larger than the sum of its proper divisors (8426485219).

42132426065 is an equidigital number, since it uses as much as digits as its factorization.

42132426065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426485218.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 42132426065 its reverse (56062423124), we get a palindrome (98194849189).

The spelling of 42132426065 in words is "forty-two billion, one hundred thirty-two million, four hundred twenty-six thousand, sixty-five".