2859147881 has 4 divisors (see below), whose sum is σ = 2877359172. Its totient is φ = 2840936592.

The previous prime is 2859147869. The next prime is 2859147899. The reversal of 2859147881 is 1887419582.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2168299225 + 690848656 = 46565^2 + 26284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2859147881 is a prime.

It is a super-2 number, since 2×2859147881² = 16349453210853580322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2859117881) 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, 9105410 + ... + 9105723.

It is an arithmetic number, because the mean of its divisors is an integer number (719339793).

Almost surely, 2^2859147881 is an apocalyptic number.

It is an amenable number.

2859147881 is a deficient number, since it is larger than the sum of its proper divisors (18211291).

2859147881 is a wasteful number, since it uses less digits than its factorization.

2859147881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18211290.

The product of its digits is 1290240, while the sum is 53.

The square root of 2859147881 is about 53471.0003740345. Note that the first 3 decimals coincide. The cubic root of 2859147881 is about 1419.3152621756.

The spelling of 2859147881 in words is "two billion, eight hundred fifty-nine million, one hundred forty-seven thousand, eight hundred eighty-one".