13178541889 has 2 divisors, whose sum is σ = 13178541890. Its totient is φ = 13178541888.

The previous prime is 13178541877. The next prime is 13178541953. The reversal of 13178541889 is 98814587131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11257210000 + 1921331889 = 106100^2 + 43833^2 .

It is a cyclic number.

It is not a de Polignac number, because 13178541889 - 2⁹ = 13178541377 is a prime.

It is not a weakly prime, because it can be changed into another prime (13178541839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6589270944 + 6589270945.

It is an arithmetic number, because the mean of its divisors is an integer number (6589270945).

Almost surely, 2^13178541889 is an apocalyptic number.

It is an amenable number.

13178541889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13178541889 is an equidigital number, since it uses as much as digits as its factorization.

13178541889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 55.

The spelling of 13178541889 in words is "thirteen billion, one hundred seventy-eight million, five hundred forty-one thousand, eight hundred eighty-nine".