2881128346 has 16 divisors (see below), whose sum is σ = 4816748160. Its totient is φ = 1284465600.

The previous prime is 2881128317. The next prime is 2881128353. The reversal of 2881128346 is 6438211882.

It is a happy number.

It is a super-2 number, since 2×2881128346² = 16601801092249391432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2229330 + ... + 2230621.

It is an arithmetic number, because the mean of its divisors is an integer number (301046760).

Almost surely, 2^2881128346 is an apocalyptic number.

2881128346 is a deficient number, since it is larger than the sum of its proper divisors (1935619814).

2881128346 is a wasteful number, since it uses less digits than its factorization.

2881128346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459989.

The product of its digits is 147456, while the sum is 43.

The square root of 2881128346 is about 53676.1431736670. The cubic root of 2881128346 is about 1422.9431033846.

The spelling of 2881128346 in words is "two billion, eight hundred eighty-one million, one hundred twenty-eight thousand, three hundred forty-six".