3648572082217 has 4 divisors (see below), whose sum is σ = 3664231190100. Its totient is φ = 3632912974336.

The previous prime is 3648572082203. The next prime is 3648572082227. The reversal of 3648572082217 is 7122802758463.

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 624812783401 + 3023759298816 = 790451^2 + 1738896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3648572082217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3648572082227) 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, 7829553592 + ... + 7829554057.

It is an arithmetic number, because the mean of its divisors is an integer number (916057797525).

Almost surely, 2^{3648572082217} is an apocalyptic number.

It is an amenable number.

3648572082217 is a deficient number, since it is larger than the sum of its proper divisors (15659107883).

3648572082217 is a wasteful number, since it uses less digits than its factorization.

3648572082217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15659107882.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 3648572082217 in words is "three trillion, six hundred forty-eight billion, five hundred seventy-two million, eighty-two thousand, two hundred seventeen".