16239929019 has 8 divisors (see below), whose sum is σ = 21655502352. Its totient is φ = 10825487520.

The previous prime is 16239929009. The next prime is 16239929023. The reversal of 16239929019 is 91092993261.

It is a happy number.

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

It is not a de Polignac number, because 16239929019 - 2¹⁷ = 16239797947 is a prime.

It is a super-2 number, since 2×16239929019² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16239929009) 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 7 ways as a sum of consecutive naturals, for example, 248892 + ... + 307289.

It is an arithmetic number, because the mean of its divisors is an integer number (2706937794).

Almost surely, 2^16239929019 is an apocalyptic number.

16239929019 is a deficient number, since it is larger than the sum of its proper divisors (5415573333).

16239929019 is an equidigital number, since it uses as much as digits as its factorization.

16239929019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565917.

The product of its (nonzero) digits is 472392, while the sum is 51.

The spelling of 16239929019 in words is "sixteen billion, two hundred thirty-nine million, nine hundred twenty-nine thousand, nineteen".