2845722709 has 2 divisors, whose sum is σ = 2845722710. Its totient is φ = 2845722708.

The previous prime is 2845722653. The next prime is 2845722809. The reversal of 2845722709 is 9072275482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2430785809 + 414936900 = 49303^2 + 20370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2845722709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2845722809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1422861354 + 1422861355.

It is an arithmetic number, because the mean of its divisors is an integer number (1422861355).

Almost surely, 2^2845722709 is an apocalyptic number.

It is an amenable number.

2845722709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2845722709 is an equidigital number, since it uses as much as digits as its factorization.

2845722709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 2845722709 is about 53345.3157175023. The cubic root of 2845722709 is about 1417.0903040180.

The spelling of 2845722709 in words is "two billion, eight hundred forty-five million, seven hundred twenty-two thousand, seven hundred nine".