13891858927 has 2 divisors, whose sum is σ = 13891858928. Its totient is φ = 13891858926.

The previous prime is 13891858891. The next prime is 13891858931. The reversal of 13891858927 is 72985819831.

It is a strong prime.

It is an emirp because it is prime and its reverse (72985819831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13891858927 - 2²³ = 13883470319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13891858957) 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, 6945929463 + 6945929464.

It is an arithmetic number, because the mean of its divisors is an integer number (6945929464).

Almost surely, 2^13891858927 is an apocalyptic number.

13891858927 is a deficient number, since it is larger than the sum of its proper divisors (1).

13891858927 is an equidigital number, since it uses as much as digits as its factorization.

13891858927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 61.

The spelling of 13891858927 in words is "thirteen billion, eight hundred ninety-one million, eight hundred fifty-eight thousand, nine hundred twenty-seven".