2721272591 has 4 divisors (see below), whose sum is σ = 2721827184. Its totient is φ = 2720718000.

The previous prime is 2721272581. The next prime is 2721272677. The reversal of 2721272591 is 1952721272.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2721272591 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 (2721272581) 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, 269870 + ... + 279771.

It is an arithmetic number, because the mean of its divisors is an integer number (680456796).

Almost surely, 2^2721272591 is an apocalyptic number.

2721272591 is a deficient number, since it is larger than the sum of its proper divisors (554593).

2721272591 is an equidigital number, since it uses as much as digits as its factorization.

2721272591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554592.

The product of its digits is 35280, while the sum is 38.

The square root of 2721272591 is about 52165.8182241973. The cubic root of 2721272591 is about 1396.1240737157.

The spelling of 2721272591 in words is "two billion, seven hundred twenty-one million, two hundred seventy-two thousand, five hundred ninety-one".