16879465519 has 4 divisors (see below), whose sum is σ = 19290817744. Its totient is φ = 14468113296.

The previous prime is 16879465517. The next prime is 16879465523. The reversal of 16879465519 is 91556497861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91556497861 = 12329 ⋅7426109.

It is not a de Polignac number, because 16879465519 - 2¹ = 16879465517 is a prime.

It is a super-2 number, since 2×16879465519² (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 (16879465511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205676102 + ... + 1205676115.

It is an arithmetic number, because the mean of its divisors is an integer number (4822704436).

Almost surely, 2^16879465519 is an apocalyptic number.

16879465519 is a deficient number, since it is larger than the sum of its proper divisors (2411352225).

16879465519 is an equidigital number, since it uses as much as digits as its factorization.

16879465519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411352224.

The product of its digits is 16329600, while the sum is 61.

The spelling of 16879465519 in words is "sixteen billion, eight hundred seventy-nine million, four hundred sixty-five thousand, five hundred nineteen".