2858779117171 has 4 divisors (see below), whose sum is σ = 2928505437144. Its totient is φ = 2789052797200.

The previous prime is 2858779117141. The next prime is 2858779117289. The reversal of 2858779117171 is 1717119778582.

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 2858779117171 - 2⁹ = 2858779116659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2858779117111) 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, 34863159925 + ... + 34863160006.

It is an arithmetic number, because the mean of its divisors is an integer number (732126359286).

Almost surely, 2^{2858779117171} is an apocalyptic number.

2858779117171 is a deficient number, since it is larger than the sum of its proper divisors (69726319973).

2858779117171 is an equidigital number, since it uses as much as digits as its factorization.

2858779117171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69726319972.

The product of its digits is 13829760, while the sum is 64.

The spelling of 2858779117171 in words is "two trillion, eight hundred fifty-eight billion, seven hundred seventy-nine million, one hundred seventeen thousand, one hundred seventy-one".