108909109089 has 64 divisors (see below), whose sum is σ = 179965255680. Its totient is φ = 64527298560.

The previous prime is 108909109069. The next prime is 108909109117. The reversal of 108909109089 is 980901909801.

It is not a de Polignac number, because 108909109089 - 2¹³ = 108909100897 is a prime.

It is a super-2 number, since 2×108909109089² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108909109069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13717729 + ... + 13725665.

It is an arithmetic number, because the mean of its divisors is an integer number (2811957120).

Almost surely, 2^108909109089 is an apocalyptic number.

It is an amenable number.

108909109089 is a deficient number, since it is larger than the sum of its proper divisors (71056146591).

108909109089 is a wasteful number, since it uses less digits than its factorization.

108909109089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 54.

The spelling of 108909109089 in words is "one hundred eight billion, nine hundred nine million, one hundred nine thousand, eighty-nine".