65008038850609 has 4 divisors (see below), whose sum is σ = 65009659594240. Its totient is φ = 65006418106980.

The previous prime is 65008038850597. The next prime is 65008038850633. The reversal of 65008038850609 is 90605883080056.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65008038850609 - 2¹¹ = 65008038848561 is a prime.

It is a super-2 number, since 2×65008038850609² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65008038850309) 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, 810311649 + ... + 810391870.

It is an arithmetic number, because the mean of its divisors is an integer number (16252414898560).

Almost surely, 2^{65008038850609} is an apocalyptic number.

It is an amenable number.

65008038850609 is a deficient number, since it is larger than the sum of its proper divisors (1620743631).

65008038850609 is a wasteful number, since it uses less digits than its factorization.

65008038850609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620743630.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The spelling of 65008038850609 in words is "sixty-five trillion, eight billion, thirty-eight million, eight hundred fifty thousand, six hundred nine".