2866271856 has 60 divisors (see below), whose sum is σ = 8613446472. Its totient is φ = 818934144.

The previous prime is 2866271833. The next prime is 2866271899. The reversal of 2866271856 is 6581726682.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2866271799 and 2866271808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606975 + ... + 611678.

Almost surely, 2^2866271856 is an apocalyptic number.

It is an amenable number.

2866271856 is an abundant number, since it is smaller than the sum of its proper divisors (5747174616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2866271856 is a wasteful number, since it uses less digits than its factorization.

2866271856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218678 (or 1218665 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 2866271856 is about 53537.5742446368. The cubic root of 2866271856 is about 1420.4930933180.

The spelling of 2866271856 in words is "two billion, eight hundred sixty-six million, two hundred seventy-one thousand, eight hundred fifty-six".