2721448061 has 2 divisors, whose sum is σ = 2721448062. Its totient is φ = 2721448060.

The previous prime is 2721448049. The next prime is 2721448123. The reversal of 2721448061 is 1608441272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1599600025 + 1121848036 = 39995^2 + 33494^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721448061 - 2⁶ = 2721447997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721448001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360724030 + 1360724031.

It is an arithmetic number, because the mean of its divisors is an integer number (1360724031).

Almost surely, 2^2721448061 is an apocalyptic number.

It is an amenable number.

2721448061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721448061 is an equidigital number, since it uses as much as digits as its factorization.

2721448061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2721448061 is about 52167.5000455264. The cubic root of 2721448061 is about 1396.1540808315.

The spelling of 2721448061 in words is "two billion, seven hundred twenty-one million, four hundred forty-eight thousand, sixty-one".