134413439989 has 4 divisors (see below), whose sum is σ = 138749357440. Its totient is φ = 130077522540.

The previous prime is 134413439939. The next prime is 134413440043. The reversal of 134413439989 is 989934314431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989934314431 = 769 ⋅1287300799.

It is a cyclic number.

It is not a de Polignac number, because 134413439989 - 2²⁵ = 134379885557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134413439939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2167958679 + ... + 2167958740.

It is an arithmetic number, because the mean of its divisors is an integer number (34687339360).

Almost surely, 2^134413439989 is an apocalyptic number.

It is an amenable number.

134413439989 is a deficient number, since it is larger than the sum of its proper divisors (4335917451).

134413439989 is an equidigital number, since it uses as much as digits as its factorization.

134413439989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335917450.

The product of its digits is 10077696, while the sum is 58.

The spelling of 134413439989 in words is "one hundred thirty-four billion, four hundred thirteen million, four hundred thirty-nine thousand, nine hundred eighty-nine".