2705489651 has 2 divisors, whose sum is σ = 2705489652. Its totient is φ = 2705489650.

The previous prime is 2705489641. The next prime is 2705489653. The reversal of 2705489651 is 1569845072.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2705489651 - 2⁶ = 2705489587 is a prime.

It is a Sophie Germain prime.

Together with 2705489653, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2705489596 and 2705489605.

It is not a weakly prime, because it can be changed into another prime (2705489653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352744825 + 1352744826.

It is an arithmetic number, because the mean of its divisors is an integer number (1352744826).

Almost surely, 2^2705489651 is an apocalyptic number.

2705489651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705489651 is an equidigital number, since it uses as much as digits as its factorization.

2705489651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 2705489651 is about 52014.3215951146. The cubic root of 2705489651 is about 1393.4197409396.

The spelling of 2705489651 in words is "two billion, seven hundred five million, four hundred eighty-nine thousand, six hundred fifty-one".