2745141689 has 2 divisors, whose sum is σ = 2745141690. Its totient is φ = 2745141688.

The previous prime is 2745141671. The next prime is 2745141709. The reversal of 2745141689 is 9861415472.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2655650089 + 89491600 = 51533^2 + 9460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745141689 - 2⁸ = 2745141433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2745141989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372570844 + 1372570845.

It is an arithmetic number, because the mean of its divisors is an integer number (1372570845).

Almost surely, 2^2745141689 is an apocalyptic number.

It is an amenable number.

2745141689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745141689 is an equidigital number, since it uses as much as digits as its factorization.

2745141689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 47.

The square root of 2745141689 is about 52394.0997536936. The cubic root of 2745141689 is about 1400.1941378736.

The spelling of 2745141689 in words is "two billion, seven hundred forty-five million, one hundred forty-one thousand, six hundred eighty-nine".