16923864919 has 16 divisors (see below), whose sum is σ = 18416813184. Its totient is φ = 15458400000.

The previous prime is 16923864911. The next prime is 16923864929. The reversal of 16923864919 is 91946832961.

It is a cyclic number.

It is not a de Polignac number, because 16923864919 - 2³ = 16923864911 is a prime.

It is a super-2 number, since 2×16923864919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923864911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3559794 + ... + 3564544.

It is an arithmetic number, because the mean of its divisors is an integer number (1151050824).

Almost surely, 2^16923864919 is an apocalyptic number.

16923864919 is a deficient number, since it is larger than the sum of its proper divisors (1492948265).

16923864919 is a wasteful number, since it uses less digits than its factorization.

16923864919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578.

The product of its digits is 5038848, while the sum is 58.

The spelling of 16923864919 in words is "sixteen billion, nine hundred twenty-three million, eight hundred sixty-four thousand, nine hundred nineteen".