16923259919 has 8 divisors (see below), whose sum is σ = 17038553088. Its totient is φ = 16808009400.

The previous prime is 16923259823. The next prime is 16923259921. The reversal of 16923259919 is 91995232961.

It is a happy number.

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 16923259919 - 2¹² = 16923255823 is a prime.

It is a super-2 number, since 2×16923259919² (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 (16923259949) 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, 1578194 + ... + 1588880.

It is an arithmetic number, because the mean of its divisors is an integer number (2129819136).

Almost surely, 2^16923259919 is an apocalyptic number.

16923259919 is a deficient number, since it is larger than the sum of its proper divisors (115293169).

16923259919 is a wasteful number, since it uses less digits than its factorization.

16923259919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21325.

The product of its digits is 2361960, while the sum is 56.

The spelling of 16923259919 in words is "sixteen billion, nine hundred twenty-three million, two hundred fifty-nine thousand, nine hundred nineteen".