17680611212 has 24 divisors (see below), whose sum is σ = 33893972112. Its totient is φ = 8003289600.

The previous prime is 17680611181. The next prime is 17680611227. The reversal of 17680611212 is 21211608671.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823073 + ... + 844280.

It is an arithmetic number, because the mean of its divisors is an integer number (1412248838).

Almost surely, 2^17680611212 is an apocalyptic number.

It is an amenable number.

17680611212 is a deficient number, since it is larger than the sum of its proper divisors (16213360900).

17680611212 is a wasteful number, since it uses less digits than its factorization.

17680611212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667609 (or 1667607 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 17680611212 in words is "seventeen billion, six hundred eighty million, six hundred eleven thousand, two hundred twelve".