2873128881 has 16 divisors (see below), whose sum is σ = 4568454144. Its totient is φ = 1570405584.

The previous prime is 2873128879. The next prime is 2873128903. The reversal of 2873128881 is 1888213782.

2873128881 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2873128881 - 2¹ = 2873128879 is a prime.

It is a super-2 number, since 2×2873128881² = 16509739133672624322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2873128881.

It is not an unprimeable number, because it can be changed into a prime (2873128831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2973771 + ... + 2974736.

It is an arithmetic number, because the mean of its divisors is an integer number (285528384).

Almost surely, 2^2873128881 is an apocalyptic number.

2873128881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2873128881 is a deficient number, since it is larger than the sum of its proper divisors (1695325263).

2873128881 is a wasteful number, since it uses less digits than its factorization.

2873128881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948540.

The product of its digits is 344064, while the sum is 48.

The square root of 2873128881 is about 53601.5753593120. The cubic root of 2873128881 is about 1421.6249468331.

The spelling of 2873128881 in words is "two billion, eight hundred seventy-three million, one hundred twenty-eight thousand, eight hundred eighty-one".