42013260065 has 16 divisors (see below), whose sum is σ = 57626049792. Its totient is φ = 28805160384.

The previous prime is 42013260049. The next prime is 42013260071. The reversal of 42013260065 is 56006231024.

It is not a de Polignac number, because 42013260065 - 2⁴ = 42013260049 is a prime.

It is a super-2 number, since 2×42013260065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190967 + ... + 347123.

It is an arithmetic number, because the mean of its divisors is an integer number (3601628112).

Almost surely, 2^42013260065 is an apocalyptic number.

It is an amenable number.

42013260065 is a deficient number, since it is larger than the sum of its proper divisors (15612789727).

42013260065 is a wasteful number, since it uses less digits than its factorization.

42013260065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163856.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 42013260065 its reverse (56006231024), we get a palindrome (98019491089).

The spelling of 42013260065 in words is "forty-two billion, thirteen million, two hundred sixty thousand, sixty-five".