8820272991 has 4 divisors (see below), whose sum is σ = 11760363992. Its totient is φ = 5880181992.

The previous prime is 8820272959. The next prime is 8820273019. The reversal of 8820272991 is 1992720288.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8820272991 - 2⁵ = 8820272959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8820272991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8820272941) 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, 1470045496 + ... + 1470045501.

It is an arithmetic number, because the mean of its divisors is an integer number (2940090998).

Almost surely, 2^8820272991 is an apocalyptic number.

8820272991 is a deficient number, since it is larger than the sum of its proper divisors (2940091001).

8820272991 is a wasteful number, since it uses less digits than its factorization.

8820272991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940091000.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 8820272991 is about 93916.3084400148. The cubic root of 8820272991 is about 2066.1444245135.

The spelling of 8820272991 in words is "eight billion, eight hundred twenty million, two hundred seventy-two thousand, nine hundred ninety-one".