108217743209 has 4 divisors (see below), whose sum is σ = 108289938000. Its totient is φ = 108145548420.

The previous prime is 108217743197. The next prime is 108217743223. The reversal of 108217743209 is 902347712801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108217743209 - 2⁸ = 108217742953 is a prime.

It is a super-2 number, since 2×108217743209² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108217743209.

It is not an unprimeable number, because it can be changed into a prime (108217743259) 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, 36095147 + ... + 36098144.

It is an arithmetic number, because the mean of its divisors is an integer number (27072484500).

Almost surely, 2^108217743209 is an apocalyptic number.

It is an amenable number.

108217743209 is a deficient number, since it is larger than the sum of its proper divisors (72194791).

108217743209 is an equidigital number, since it uses as much as digits as its factorization.

108217743209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72194790.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 108217743209 in words is "one hundred eight billion, two hundred seventeen million, seven hundred forty-three thousand, two hundred nine".