2745343639 has 2 divisors, whose sum is σ = 2745343640. Its totient is φ = 2745343638.

The previous prime is 2745343603. The next prime is 2745343681. The reversal of 2745343639 is 9363435472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2745343639 - 2⁷ = 2745343511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2745343739) 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, 1372671819 + 1372671820.

It is an arithmetic number, because the mean of its divisors is an integer number (1372671820).

Almost surely, 2^2745343639 is an apocalyptic number.

2745343639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745343639 is an equidigital number, since it uses as much as digits as its factorization.

2745343639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 46.

The square root of 2745343639 is about 52396.0269390724. The cubic root of 2745343639 is about 1400.2284727464.

The spelling of 2745343639 in words is "two billion, seven hundred forty-five million, three hundred forty-three thousand, six hundred thirty-nine".