2720810749 has 2 divisors, whose sum is σ = 2720810750. Its totient is φ = 2720810748.

The previous prime is 2720810731. The next prime is 2720810761. The reversal of 2720810749 is 9470180272.

2720810749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2673613849 + 47196900 = 51707^2 + 6870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720810749 - 2²⁷ = 2586593021 is a prime.

It is a super-2 number, since 2×2720810749² = 14805622263747882002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720810249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360405374 + 1360405375.

It is an arithmetic number, because the mean of its divisors is an integer number (1360405375).

Almost surely, 2^2720810749 is an apocalyptic number.

It is an amenable number.

2720810749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720810749 is an equidigital number, since it uses as much as digits as its factorization.

2720810749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2720810749 is about 52161.3913637280. The cubic root of 2720810749 is about 1396.0450879724.

The spelling of 2720810749 in words is "two billion, seven hundred twenty million, eight hundred ten thousand, seven hundred forty-nine".