2745012275081 has 2 divisors, whose sum is σ = 2745012275082. Its totient is φ = 2745012275080.

The previous prime is 2745012275041. The next prime is 2745012275119. The reversal of 2745012275081 is 1805722105472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2207259919225 + 537752355856 = 1485685^2 + 733316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2745012275081 is a prime.

It is a super-2 number, since 2×2745012275081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2745012275011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372506137540 + 1372506137541.

It is an arithmetic number, because the mean of its divisors is an integer number (1372506137541).

Almost surely, 2^{2745012275081} is an apocalyptic number.

It is an amenable number.

2745012275081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745012275081 is an equidigital number, since it uses as much as digits as its factorization.

2745012275081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 2745012275081 in words is "two trillion, seven hundred forty-five billion, twelve million, two hundred seventy-five thousand, eighty-one".