872585535146217 has 16 divisors (see below), whose sum is σ = 1163505115335360. Its totient is φ = 581694823411200.

The previous prime is 872585535146207. The next prime is 872585535146219. The reversal of 872585535146217 is 712641535585278.

It is a happy number.

It is not a de Polignac number, because 872585535146217 - 2²⁴ = 872585518369001 is a prime.

It is a super-2 number, since 2×872585535146217² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872585535146219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7116753409 + ... + 7116876017.

It is an arithmetic number, because the mean of its divisors is an integer number (72719069708460).

Almost surely, 2^{872585535146217} is an apocalyptic number.

It is an amenable number.

872585535146217 is a deficient number, since it is larger than the sum of its proper divisors (290919580189143).

872585535146217 is a wasteful number, since it uses less digits than its factorization.

872585535146217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220984.

The product of its digits is 564480000, while the sum is 69.

The spelling of 872585535146217 in words is "eight hundred seventy-two trillion, five hundred eighty-five billion, five hundred thirty-five million, one hundred forty-six thousand, two hundred seventeen".