2745840893 has 2 divisors, whose sum is σ = 2745840894. Its totient is φ = 2745840892.

The previous prime is 2745840869. The next prime is 2745841001. The reversal of 2745840893 is 3980485472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1508700964 + 1237139929 = 38842^2 + 35173^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745840893 - 2²⁴ = 2729063677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2745840863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372920446 + 1372920447.

It is an arithmetic number, because the mean of its divisors is an integer number (1372920447).

Almost surely, 2^2745840893 is an apocalyptic number.

It is an amenable number.

2745840893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745840893 is an equidigital number, since it uses as much as digits as its factorization.

2745840893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 2745840893 is about 52400.7718740860. The cubic root of 2745840893 is about 1400.3130070546.

The spelling of 2745840893 in words is "two billion, seven hundred forty-five million, eight hundred forty thousand, eight hundred ninety-three".