16859247879 has 8 divisors (see below), whose sum is σ = 22763541760. Its totient is φ = 11097226296.

The previous prime is 16859247869. The next prime is 16859247887. The reversal of 16859247879 is 97874295861.

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

It is not a de Polignac number, because 16859247879 - 2⁸ = 16859247623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16859247829) 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, 35567797 + ... + 35568270.

It is an arithmetic number, because the mean of its divisors is an integer number (2845442720).

Almost surely, 2^16859247879 is an apocalyptic number.

16859247879 is a deficient number, since it is larger than the sum of its proper divisors (5904293881).

16859247879 is an equidigital number, since it uses as much as digits as its factorization.

16859247879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71136149.

The product of its digits is 60963840, while the sum is 66.

The spelling of 16859247879 in words is "sixteen billion, eight hundred fifty-nine million, two hundred forty-seven thousand, eight hundred seventy-nine".