2775172789 has 2 divisors, whose sum is σ = 2775172790. Its totient is φ = 2775172788.

The previous prime is 2775172759. The next prime is 2775172819. The reversal of 2775172789 is 9872715772.

It is a balanced prime because it is at equal distance from previous prime (2775172759) and next prime (2775172819).

It can be written as a sum of positive squares in only one way, i.e., 2332407025 + 442765764 = 48295^2 + 21042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2775172789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2775172759) 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, 1387586394 + 1387586395.

It is an arithmetic number, because the mean of its divisors is an integer number (1387586395).

Almost surely, 2^2775172789 is an apocalyptic number.

It is an amenable number.

2775172789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775172789 is an equidigital number, since it uses as much as digits as its factorization.

2775172789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3457440, while the sum is 55.

The square root of 2775172789 is about 52679.9087793440. The cubic root of 2775172789 is about 1405.2815448749.

The spelling of 2775172789 in words is "two billion, seven hundred seventy-five million, one hundred seventy-two thousand, seven hundred eighty-nine".