2750478749 has 2 divisors, whose sum is σ = 2750478750. Its totient is φ = 2750478748.

The previous prime is 2750478677. The next prime is 2750478769. The reversal of 2750478749 is 9478740572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1821753124 + 928725625 = 42682^2 + 30475^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750478749 - 2¹² = 2750474653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2750478749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2750478769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375239374 + 1375239375.

It is an arithmetic number, because the mean of its divisors is an integer number (1375239375).

Almost surely, 2^2750478749 is an apocalyptic number.

It is an amenable number.

2750478749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750478749 is an equidigital number, since it uses as much as digits as its factorization.

2750478749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3951360, while the sum is 53.

The square root of 2750478749 is about 52445.0069024688. The cubic root of 2750478749 is about 1401.1009620361.

The spelling of 2750478749 in words is "two billion, seven hundred fifty million, four hundred seventy-eight thousand, seven hundred forty-nine".