2108500915909 has 8 divisors (see below), whose sum is σ = 2126052735840. Its totient is φ = 2090971162800.

The previous prime is 2108500915891. The next prime is 2108500915957. The reversal of 2108500915909 is 9095190058012.

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 2108500915909 - 2²⁷ = 2108366698181 is a prime.

It is a super-2 number, since 2×2108500915909² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108500915979) 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, 5324782 + ... + 5707039.

It is an arithmetic number, because the mean of its divisors is an integer number (265756591980).

Almost surely, 2^{2108500915909} is an apocalyptic number.

It is an amenable number.

2108500915909 is a deficient number, since it is larger than the sum of its proper divisors (17551819931).

2108500915909 is a wasteful number, since it uses less digits than its factorization.

2108500915909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11033411.

The product of its (nonzero) digits is 291600, while the sum is 49.

The spelling of 2108500915909 in words is "two trillion, one hundred eight billion, five hundred million, nine hundred fifteen thousand, nine hundred nine".