12897475435 has 8 divisors (see below), whose sum is σ = 16667506800. Its totient is φ = 9524289504.

The previous prime is 12897475387. The next prime is 12897475439. The reversal of 12897475435 is 53457479821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12897475435 - 2³³ = 4307540843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12897475439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99211285 + ... + 99211414.

It is an arithmetic number, because the mean of its divisors is an integer number (2083438350).

Almost surely, 2^12897475435 is an apocalyptic number.

12897475435 is a deficient number, since it is larger than the sum of its proper divisors (3770031365).

12897475435 is a wasteful number, since it uses less digits than its factorization.

12897475435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198422717.

The product of its digits is 8467200, while the sum is 55.

The spelling of 12897475435 in words is "twelve billion, eight hundred ninety-seven million, four hundred seventy-five thousand, four hundred thirty-five".