12735958489 has 4 divisors (see below), whose sum is σ = 12889403856. Its totient is φ = 12582513124.

The previous prime is 12735958481. The next prime is 12735958517. The reversal of 12735958489 is 98485953721.

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: 98485953721 = 37 ⋅2661782533.

It is a cyclic number.

It is not a de Polignac number, because 12735958489 - 2³ = 12735958481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12735958481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76722559 + ... + 76722724.

It is an arithmetic number, because the mean of its divisors is an integer number (3222350964).

Almost surely, 2^12735958489 is an apocalyptic number.

It is an amenable number.

12735958489 is a deficient number, since it is larger than the sum of its proper divisors (153445367).

12735958489 is an equidigital number, since it uses as much as digits as its factorization.

12735958489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153445366.

The product of its digits is 21772800, while the sum is 61.

The spelling of 12735958489 in words is "twelve billion, seven hundred thirty-five million, nine hundred fifty-eight thousand, four hundred eighty-nine".