12645032353 has 4 divisors (see below), whose sum is σ = 12655562308. Its totient is φ = 12634502400.

The previous prime is 12645032341. The next prime is 12645032357. The reversal of 12645032353 is 35323054621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35323054621 = 439 ⋅80462539.

It can be written as a sum of positive squares in 2 ways, for example, as 4330692864 + 8314339489 = 65808^2 + 91183^2 .

It is a cyclic number.

It is not a de Polignac number, because 12645032353 - 2¹⁷ = 12644901281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12645032357) 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, 5263176 + ... + 5265577.

It is an arithmetic number, because the mean of its divisors is an integer number (3163890577).

Almost surely, 2^12645032353 is an apocalyptic number.

It is an amenable number.

12645032353 is a deficient number, since it is larger than the sum of its proper divisors (10529955).

12645032353 is a wasteful number, since it uses less digits than its factorization.

12645032353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529954.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 12645032353 its reverse (35323054621), we get a palindrome (47968086974).

The spelling of 12645032353 in words is "twelve billion, six hundred forty-five million, thirty-two thousand, three hundred fifty-three".