217152311207 has 32 divisors (see below), whose sum is σ = 246898713600. Its totient is φ = 189659014272.

The previous prime is 217152311149. The next prime is 217152311219. The reversal of 217152311207 is 702113251712.

It is not a de Polignac number, because 217152311207 - 2³⁶ = 148432834471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217152311287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2294144 + ... + 2386922.

It is an arithmetic number, because the mean of its divisors is an integer number (7715584800).

Almost surely, 2^217152311207 is an apocalyptic number.

217152311207 is a deficient number, since it is larger than the sum of its proper divisors (29746402393).

217152311207 is a wasteful number, since it uses less digits than its factorization.

217152311207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92967.

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 217152311207 its reverse (702113251712), we get a palindrome (919265562919).

The spelling of 217152311207 in words is "two hundred seventeen billion, one hundred fifty-two million, three hundred eleven thousand, two hundred seven".