13473556891 has 2 divisors, whose sum is σ = 13473556892. Its totient is φ = 13473556890.

The previous prime is 13473556879. The next prime is 13473556909. The reversal of 13473556891 is 19865537431.

It is a weak prime.

It is an emirp because it is prime and its reverse (19865537431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13473556891 - 2¹⁵ = 13473524123 is a prime.

It is not a weakly prime, because it can be changed into another prime (13473556801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6736778445 + 6736778446.

It is an arithmetic number, because the mean of its divisors is an integer number (6736778446).

Almost surely, 2^13473556891 is an apocalyptic number.

13473556891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13473556891 is an equidigital number, since it uses as much as digits as its factorization.

13473556891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 52.

The spelling of 13473556891 in words is "thirteen billion, four hundred seventy-three million, five hundred fifty-six thousand, eight hundred ninety-one".