2801272891 has 8 divisors (see below), whose sum is σ = 2817314640. Its totient is φ = 2785277088.

The previous prime is 2801272853. The next prime is 2801272907. The reversal of 2801272891 is 1982721082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2801272891 - 2⁷ = 2801272763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2801272811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114720 + ... + 136978.

It is an arithmetic number, because the mean of its divisors is an integer number (352164330).

Almost surely, 2^2801272891 is an apocalyptic number.

2801272891 is a deficient number, since it is larger than the sum of its proper divisors (16041749).

2801272891 is a wasteful number, since it uses less digits than its factorization.

2801272891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22973.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 2801272891 is about 52927.0525440441. The cubic root of 2801272891 is about 1409.6732960354.

The spelling of 2801272891 in words is "two billion, eight hundred one million, two hundred seventy-two thousand, eight hundred ninety-one".