108425216509 has 8 divisors (see below), whose sum is σ = 113945295200. Its totient is φ = 103041436176.

The previous prime is 108425216491. The next prime is 108425216519. The reversal of 108425216509 is 905612524801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108425216509 - 2⁵ = 108425216477 is a prime.

It is a super-2 number, since 2×108425216509² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108425216519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34072959 + ... + 34076140.

It is an arithmetic number, because the mean of its divisors is an integer number (14243161900).

Almost surely, 2^108425216509 is an apocalyptic number.

It is an amenable number.

108425216509 is a deficient number, since it is larger than the sum of its proper divisors (5520078691).

108425216509 is an equidigital number, since it uses as much as digits as its factorization.

108425216509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68149179.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 108425216509 in words is "one hundred eight billion, four hundred twenty-five million, two hundred sixteen thousand, five hundred nine".