2750643613 has 2 divisors, whose sum is σ = 2750643614. Its totient is φ = 2750643612.

The previous prime is 2750643607. The next prime is 2750643631. The reversal of 2750643613 is 3163460572.

Together with next prime (2750643631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2750163364 + 480249 = 52442^2 + 693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2750643613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2750643713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375321806 + 1375321807.

It is an arithmetic number, because the mean of its divisors is an integer number (1375321807).

Almost surely, 2^2750643613 is an apocalyptic number.

It is an amenable number.

2750643613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750643613 is an equidigital number, since it uses as much as digits as its factorization.

2750643613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 2750643613 is about 52446.5786586694. The cubic root of 2750643613 is about 1401.1289555256.

The spelling of 2750643613 in words is "two billion, seven hundred fifty million, six hundred forty-three thousand, six hundred thirteen".