16868690305919 has 16 divisors (see below), whose sum is σ = 16908273208320. Its totient is φ = 16829167862880.

The previous prime is 16868690305871. The next prime is 16868690305937. The reversal of 16868690305919 is 91950309686861.

It is a cyclic number.

It is not a de Polignac number, because 16868690305919 - 2¹² = 16868690301823 is a prime.

It is a super-3 number, since 3×16868690305919³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868690305969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4209803414 + ... + 4209807420.

It is an arithmetic number, because the mean of its divisors is an integer number (1056767075520).

Almost surely, 2^{16868690305919} is an apocalyptic number.

16868690305919 is a deficient number, since it is larger than the sum of its proper divisors (39582902401).

16868690305919 is a wasteful number, since it uses less digits than its factorization.

16868690305919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350.

The product of its (nonzero) digits is 151165440, while the sum is 71.

The spelling of 16868690305919 in words is "sixteen trillion, eight hundred sixty-eight billion, six hundred ninety million, three hundred five thousand, nine hundred nineteen".