17928009912 has 16 divisors (see below), whose sum is σ = 44820024840. Its totient is φ = 5976003296.

The previous prime is 17928009901. The next prime is 17928009919. The reversal of 17928009912 is 21990082971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17928009919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373500183 + ... + 373500230.

Almost surely, 2^17928009912 is an apocalyptic number.

17928009912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17928009912 is an abundant number, since it is smaller than the sum of its proper divisors (26892014928).

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

17928009912 is a wasteful number, since it uses less digits than its factorization.

17928009912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747000422 (or 747000418 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 17928009912 in words is "seventeen billion, nine hundred twenty-eight million, nine thousand, nine hundred twelve".