16981782792 has 64 divisors (see below), whose sum is σ = 45734969280. Its totient is φ = 5223474432.

The previous prime is 16981782757. The next prime is 16981782833. The reversal of 16981782792 is 29728718961.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242138 + ... + 1255734.

It is an arithmetic number, because the mean of its divisors is an integer number (714608895).

Almost surely, 2^16981782792 is an apocalyptic number.

16981782792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16981782792 is an abundant number, since it is smaller than the sum of its proper divisors (28753186488).

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

16981782792 is a wasteful number, since it uses less digits than its factorization.

16981782792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17622 (or 17618 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 60.

The spelling of 16981782792 in words is "sixteen billion, nine hundred eighty-one million, seven hundred eighty-two thousand, seven hundred ninety-two".