2721810241 has 2 divisors, whose sum is σ = 2721810242. Its totient is φ = 2721810240.

The previous prime is 2721810227. The next prime is 2721810257. The reversal of 2721810241 is 1420181272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2139987600 + 581822641 = 46260^2 + 24121^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721810241 - 2⁵ = 2721810209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2721810541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360905120 + 1360905121.

It is an arithmetic number, because the mean of its divisors is an integer number (1360905121).

Almost surely, 2^2721810241 is an apocalyptic number.

It is an amenable number.

2721810241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721810241 is an equidigital number, since it uses as much as digits as its factorization.

2721810241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2721810241 is about 52170.9712483868. The cubic root of 2721810241 is about 1396.2160131367.

The spelling of 2721810241 in words is "two billion, seven hundred twenty-one million, eight hundred ten thousand, two hundred forty-one".