7875165201217 has 4 divisors (see below), whose sum is σ = 7882970123140. Its totient is φ = 7867360279296.

The previous prime is 7875165201193. The next prime is 7875165201259. The reversal of 7875165201217 is 7121025615787.

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 4432355459856 + 3442809741361 = 2105316^2 + 1855481^2 .

It is a cyclic number.

It is not a de Polignac number, because 7875165201217 - 2²⁷ = 7875030983489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7875165201017) by changing a digit.

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, 3902459448 + ... + 3902461465.

It is an arithmetic number, because the mean of its divisors is an integer number (1970742530785).

Almost surely, 2^{7875165201217} is an apocalyptic number.

It is an amenable number.

7875165201217 is a deficient number, since it is larger than the sum of its proper divisors (7804921923).

7875165201217 is a wasteful number, since it uses less digits than its factorization.

7875165201217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7804921922.

The product of its (nonzero) digits is 1646400, while the sum is 52.

The spelling of 7875165201217 in words is "seven trillion, eight hundred seventy-five billion, one hundred sixty-five million, two hundred one thousand, two hundred seventeen".