2720741669 has 2 divisors, whose sum is σ = 2720741670. Its totient is φ = 2720741668.

The previous prime is 2720741663. The next prime is 2720741671. The reversal of 2720741669 is 9661470272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2140172644 + 580569025 = 46262^2 + 24095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2720741669 is a prime.

It is a super-2 number, since 2×2720741669² = 14804870458865811122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2720741671, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720741663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360370834 + 1360370835.

It is an arithmetic number, because the mean of its divisors is an integer number (1360370835).

Almost surely, 2^2720741669 is an apocalyptic number.

It is an amenable number.

2720741669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720741669 is an equidigital number, since it uses as much as digits as its factorization.

2720741669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 2720741669 is about 52160.7291839368. The cubic root of 2720741669 is about 1396.0332729143.

The spelling of 2720741669 in words is "two billion, seven hundred twenty million, seven hundred forty-one thousand, six hundred sixty-nine".