109191086071008 has 48 divisors (see below), whose sum is σ = 286627990271616. Its totient is φ = 36396852266880.

The previous prime is 109191086070991. The next prime is 109191086071009. The reversal of 109191086071008 is 800170680191901.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109191086071009) 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, 17958363 + ... + 23256933.

It is an arithmetic number, because the mean of its divisors is an integer number (5971416463992).

Almost surely, 2^{109191086071008} is an apocalyptic number.

It is an amenable number.

109191086071008 is an abundant number, since it is smaller than the sum of its proper divisors (177436904200608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109191086071008 is a wasteful number, since it uses less digits than its factorization.

109191086071008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513247 (or 5513239 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 51.

The spelling of 109191086071008 in words is "one hundred nine trillion, one hundred ninety-one billion, eighty-six million, seventy-one thousand, eight".