109917323617 has 4 divisors (see below), whose sum is σ = 110925739540. Its totient is φ = 108908907696.

The previous prime is 109917323603. The next prime is 109917323629. The reversal of 109917323617 is 716323719901.

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 28373381136 + 81543942481 = 168444^2 + 285559^2 .

It is a cyclic number.

It is not a de Polignac number, because 109917323617 - 2¹⁹ = 109916799329 is a prime.

It is a super-2 number, since 2×109917323617² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109917323017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504207798 + ... + 504208015.

It is an arithmetic number, because the mean of its divisors is an integer number (27731434885).

Almost surely, 2^109917323617 is an apocalyptic number.

It is an amenable number.

109917323617 is a deficient number, since it is larger than the sum of its proper divisors (1008415923).

109917323617 is a wasteful number, since it uses less digits than its factorization.

109917323617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008415922.

The product of its (nonzero) digits is 428652, while the sum is 49.

The spelling of 109917323617 in words is "one hundred nine billion, nine hundred seventeen million, three hundred twenty-three thousand, six hundred seventeen".