17903313212 has 12 divisors (see below), whose sum is σ = 32411170680. Its totient is φ = 8642978736.

The previous prime is 17903313079. The next prime is 17903313271. The reversal of 17903313212 is 21231330971.

It is a congruent number.

It is an unprimeable number.

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, 77169338 + ... + 77169569.

It is an arithmetic number, because the mean of its divisors is an integer number (2700930890).

Almost surely, 2^17903313212 is an apocalyptic number.

It is an amenable number.

17903313212 is a deficient number, since it is larger than the sum of its proper divisors (14507857468).

17903313212 is a wasteful number, since it uses less digits than its factorization.

17903313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154338940 (or 154338938 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 17903313212 in words is "seventeen billion, nine hundred three million, three hundred thirteen thousand, two hundred twelve".