45040444251191 has 2 divisors, whose sum is σ = 45040444251192. Its totient is φ = 45040444251190.

The previous prime is 45040444251181. The next prime is 45040444251223. The reversal of 45040444251191 is 19115244404054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45040444251191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45040444251181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22520222125595 + 22520222125596.

It is an arithmetic number, because the mean of its divisors is an integer number (22520222125596).

Almost surely, 2^{45040444251191} is an apocalyptic number.

45040444251191 is a deficient number, since it is larger than the sum of its proper divisors (1).

45040444251191 is an equidigital number, since it uses as much as digits as its factorization.

45040444251191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 45040444251191 in words is "forty-five trillion, forty billion, four hundred forty-four million, two hundred fifty-one thousand, one hundred ninety-one".