16849923709 has 8 divisors (see below), whose sum is σ = 17316411840. Its totient is φ = 16386079200.

The previous prime is 16849923689. The next prime is 16849923731. The reversal of 16849923709 is 90732994861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16849923709 - 2¹¹ = 16849921661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16849924709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647979 + ... + 673480.

It is an arithmetic number, because the mean of its divisors is an integer number (2164551480).

Almost surely, 2^16849923709 is an apocalyptic number.

It is an amenable number.

16849923709 is a deficient number, since it is larger than the sum of its proper divisors (466488131).

16849923709 is a wasteful number, since it uses less digits than its factorization.

16849923709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321811.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 16849923709 in words is "sixteen billion, eight hundred forty-nine million, nine hundred twenty-three thousand, seven hundred nine".