2845418647691 has 2 divisors, whose sum is σ = 2845418647692. Its totient is φ = 2845418647690.

The previous prime is 2845418647639. The next prime is 2845418647693. The reversal of 2845418647691 is 1967468145482.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2845418647691 is a prime.

Together with 2845418647693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2845418647693) 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, 1422709323845 + 1422709323846.

It is an arithmetic number, because the mean of its divisors is an integer number (1422709323846).

Almost surely, 2^{2845418647691} is an apocalyptic number.

2845418647691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2845418647691 is an equidigital number, since it uses as much as digits as its factorization.

2845418647691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92897280, while the sum is 65.

The spelling of 2845418647691 in words is "two trillion, eight hundred forty-five billion, four hundred eighteen million, six hundred forty-seven thousand, six hundred ninety-one".