16981424812 has 12 divisors (see below), whose sum is σ = 32419083816. Its totient is φ = 7718829440.

The previous prime is 16981424809. The next prime is 16981424839. The reversal of 16981424812 is 21842418961.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192970693 + ... + 192970780.

It is an arithmetic number, because the mean of its divisors is an integer number (2701590318).

Almost surely, 2^16981424812 is an apocalyptic number.

It is an amenable number.

16981424812 is a deficient number, since it is larger than the sum of its proper divisors (15437659004).

16981424812 is a wasteful number, since it uses less digits than its factorization.

16981424812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385941488 (or 385941486 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The spelling of 16981424812 in words is "sixteen billion, nine hundred eighty-one million, four hundred twenty-four thousand, eight hundred twelve".