17379857879 has 4 divisors (see below), whose sum is σ = 17599856160. Its totient is φ = 17159859600.

The previous prime is 17379857867. The next prime is 17379857909. The reversal of 17379857879 is 97875897371.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 17379857879 - 2⁸ = 17379857623 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 (17379857849) 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, 109999022 + ... + 109999179.

It is an arithmetic number, because the mean of its divisors is an integer number (4399964040).

Almost surely, 2^17379857879 is an apocalyptic number.

17379857879 is a deficient number, since it is larger than the sum of its proper divisors (219998281).

17379857879 is an equidigital number, since it uses as much as digits as its factorization.

17379857879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219998280.

The product of its digits is 186701760, while the sum is 71.

The spelling of 17379857879 in words is "seventeen billion, three hundred seventy-nine million, eight hundred fifty-seven thousand, eight hundred seventy-nine".