16842507909 has 8 divisors (see below), whose sum is σ = 22457323200. Its totient is φ = 11228015616.

The previous prime is 16842507893. The next prime is 16842507943. The reversal of 16842507909 is 90970524861.

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

It is not a de Polignac number, because 16842507909 - 2⁴ = 16842507893 is a prime.

It is a super-3 number, since 3×16842507909³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16842507949) 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, 96517 + ... + 207365.

It is an arithmetic number, because the mean of its divisors is an integer number (2807165400).

Almost surely, 2^16842507909 is an apocalyptic number.

It is an amenable number.

16842507909 is a deficient number, since it is larger than the sum of its proper divisors (5614815291).

16842507909 is a wasteful number, since it uses less digits than its factorization.

16842507909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161499.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 16842507909 in words is "sixteen billion, eight hundred forty-two million, five hundred seven thousand, nine hundred nine".