13408961889 has 16 divisors (see below), whose sum is σ = 19089810432. Its totient is φ = 8351788368.

The previous prime is 13408961873. The next prime is 13408961897. The reversal of 13408961889 is 98816980431.

13408961889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13408961889 - 2⁴ = 13408961873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13408961869) 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 in 15 ways as a sum of consecutive naturals, for example, 2256717 + ... + 2262650.

It is an arithmetic number, because the mean of its divisors is an integer number (1193113152).

Almost surely, 2^13408961889 is an apocalyptic number.

It is an amenable number.

13408961889 is a deficient number, since it is larger than the sum of its proper divisors (5680848543).

13408961889 is a wasteful number, since it uses less digits than its factorization.

13408961889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519436.

The product of its (nonzero) digits is 2985984, while the sum is 57.

The spelling of 13408961889 in words is "thirteen billion, four hundred eight million, nine hundred sixty-one thousand, eight hundred eighty-nine".