13840488491 has 2 divisors, whose sum is σ = 13840488492. Its totient is φ = 13840488490.

The previous prime is 13840488463. The next prime is 13840488517. The reversal of 13840488491 is 19488404831.

13840488491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13840488491 is a prime.

It is not a weakly prime, because it can be changed into another prime (13840488461) 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, 6920244245 + 6920244246.

It is an arithmetic number, because the mean of its divisors is an integer number (6920244246).

Almost surely, 2^13840488491 is an apocalyptic number.

13840488491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13840488491 is an equidigital number, since it uses as much as digits as its factorization.

13840488491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 13840488491 in words is "thirteen billion, eight hundred forty million, four hundred eighty-eight thousand, four hundred ninety-one".