42431445066005 has 4 divisors (see below), whose sum is σ = 50917734079212. Its totient is φ = 33945156052800.

The previous prime is 42431445065987. The next prime is 42431445066061. The reversal of 42431445066005 is 50066054413424.

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 26519276197969 + 15912168868036 = 5149687^2 + 3989006^2 .

It is not a de Polignac number, because 42431445066005 - 2¹² = 42431445061909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4243144506596 + ... + 4243144506605.

It is an arithmetic number, because the mean of its divisors is an integer number (12729433519803).

Almost surely, 2^{42431445066005} is an apocalyptic number.

It is an amenable number.

42431445066005 is a deficient number, since it is larger than the sum of its proper divisors (8486289013207).

42431445066005 is an equidigital number, since it uses as much as digits as its factorization.

42431445066005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486289013206.

The product of its (nonzero) digits is 1382400, while the sum is 44.

Adding to 42431445066005 its reverse (50066054413424), we get a palindrome (92497499479429).

The spelling of 42431445066005 in words is "forty-two trillion, four hundred thirty-one billion, four hundred forty-five million, sixty-six thousand, five".