2721044591 has 2 divisors, whose sum is σ = 2721044592. Its totient is φ = 2721044590.

The previous prime is 2721044563. The next prime is 2721044621. The reversal of 2721044591 is 1954401272.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2721044591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721044791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360522295 + 1360522296.

It is an arithmetic number, because the mean of its divisors is an integer number (1360522296).

Almost surely, 2^2721044591 is an apocalyptic number.

2721044591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721044591 is an equidigital number, since it uses as much as digits as its factorization.

2721044591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2721044591 is about 52163.6328393642. The cubic root of 2721044591 is about 1396.0850815201.

The spelling of 2721044591 in words is "two billion, seven hundred twenty-one million, forty-four thousand, five hundred ninety-one".