17881108912 has 40 divisors (see below), whose sum is σ = 36856538352. Its totient is φ = 8374732800.

The previous prime is 17881108871. The next prime is 17881108919. The reversal of 17881108912 is 21980118871.

It is not an unprimeable number, because it can be changed into a prime (17881108919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98389 + ... + 213172.

Almost surely, 2^17881108912 is an apocalyptic number.

It is an amenable number.

17881108912 is an abundant number, since it is smaller than the sum of its proper divisors (18975429440).

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

17881108912 is a wasteful number, since it uses less digits than its factorization.

17881108912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311797 (or 311791 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 46.

The spelling of 17881108912 in words is "seventeen billion, eight hundred eighty-one million, one hundred eight thousand, nine hundred twelve".