12735435485 has 4 divisors (see below), whose sum is σ = 15282522588. Its totient is φ = 10188348384.

The previous prime is 12735435481. The next prime is 12735435527. The reversal of 12735435485 is 58453453721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58453453721 = 13 ⋅4496419517.

It can be written as a sum of positive squares in 2 ways, for example, as 9956247961 + 2779187524 = 99781^2 + 52718^2 .

It is a cyclic number.

It is not a de Polignac number, because 12735435485 - 2² = 12735435481 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 (12735435481) 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, 1273543544 + ... + 1273543553.

It is an arithmetic number, because the mean of its divisors is an integer number (3820630647).

Almost surely, 2^12735435485 is an apocalyptic number.

It is an amenable number.

12735435485 is a deficient number, since it is larger than the sum of its proper divisors (2547087103).

12735435485 is an equidigital number, since it uses as much as digits as its factorization.

12735435485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547087102.

The product of its digits is 2016000, while the sum is 47.

The spelling of 12735435485 in words is "twelve billion, seven hundred thirty-five million, four hundred thirty-five thousand, four hundred eighty-five".