2801628871 has 4 divisors (see below), whose sum is σ = 2802193200. Its totient is φ = 2801064544.

The previous prime is 2801628859. The next prime is 2801628881. The reversal of 2801628871 is 1788261082.

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 2801628871 - 2⁷ = 2801628743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801628811) 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, 274651 + ... + 284668.

It is an arithmetic number, because the mean of its divisors is an integer number (700548300).

Almost surely, 2^2801628871 is an apocalyptic number.

2801628871 is a deficient number, since it is larger than the sum of its proper divisors (564329).

2801628871 is an equidigital number, since it uses as much as digits as its factorization.

2801628871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564328.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 2801628871 is about 52930.4153677260. The cubic root of 2801628871 is about 1409.7330063010.

The spelling of 2801628871 in words is "two billion, eight hundred one million, six hundred twenty-eight thousand, eight hundred seventy-one".