2791645620241 has 2 divisors, whose sum is σ = 2791645620242. Its totient is φ = 2791645620240.

The previous prime is 2791645620221. The next prime is 2791645620263. The reversal of 2791645620241 is 1420265461972.

2791645620241 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1846122755841 + 945522864400 = 1358721^2 + 972380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2791645620241 - 2⁵ = 2791645620209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2791645620221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395822810120 + 1395822810121.

It is an arithmetic number, because the mean of its divisors is an integer number (1395822810121).

Almost surely, 2^{2791645620241} is an apocalyptic number.

It is an amenable number.

2791645620241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791645620241 is an equidigital number, since it uses as much as digits as its factorization.

2791645620241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 2791645620241 in words is "two trillion, seven hundred ninety-one billion, six hundred forty-five million, six hundred twenty thousand, two hundred forty-one".