13860550591 has 2 divisors, whose sum is σ = 13860550592. Its totient is φ = 13860550590.

The previous prime is 13860550589. The next prime is 13860550621. The reversal of 13860550591 is 19505506831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13860550591 - 2¹ = 13860550589 is a prime.

It is a super-2 number, since 2×13860550591² (a number of 21 digits) contains 22 as substring.

Together with 13860550589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13860550091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6930275295 + 6930275296.

It is an arithmetic number, because the mean of its divisors is an integer number (6930275296).

Almost surely, 2^13860550591 is an apocalyptic number.

13860550591 is a deficient number, since it is larger than the sum of its proper divisors (1).

13860550591 is an equidigital number, since it uses as much as digits as its factorization.

13860550591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 13860550591 in words is "thirteen billion, eight hundred sixty million, five hundred fifty thousand, five hundred ninety-one".