2721511841 has 2 divisors, whose sum is σ = 2721511842. Its totient is φ = 2721511840.

The previous prime is 2721511813. The next prime is 2721511901. The reversal of 2721511841 is 1481151272.

2721511841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2263380625 + 458131216 = 47575^2 + 21404^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721511841 - 2¹⁸ = 2721249697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2721511798 and 2721511807.

It is not a weakly prime, because it can be changed into another prime (2721511241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360755920 + 1360755921.

It is an arithmetic number, because the mean of its divisors is an integer number (1360755921).

Almost surely, 2^2721511841 is an apocalyptic number.

It is an amenable number.

2721511841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721511841 is an equidigital number, since it uses as much as digits as its factorization.

2721511841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 32.

The square root of 2721511841 is about 52168.1113420833. Note that the first 3 decimals coincide. The cubic root of 2721511841 is about 1396.1649875265.

The spelling of 2721511841 in words is "two billion, seven hundred twenty-one million, five hundred eleven thousand, eight hundred forty-one".