12645203607 has 6 divisors (see below), whose sum is σ = 18265294112. Its totient is φ = 8430135732.

The previous prime is 12645203569. The next prime is 12645203609. The reversal of 12645203607 is 70630254621.

12645203607 is a `hidden beast` number, since 1 + 2 + 6 + 45 + 2 + 0 + 3 + 607 = 666.

It is not a de Polignac number, because 12645203607 - 2⁷ = 12645203479 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 (12645203609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 702511303 + ... + 702511320.

Almost surely, 2^12645203607 is an apocalyptic number.

12645203607 is a deficient number, since it is larger than the sum of its proper divisors (5620090505).

12645203607 is a wasteful number, since it uses less digits than its factorization.

12645203607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405022629 (or 1405022626 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 12645203607 in words is "twelve billion, six hundred forty-five million, two hundred three thousand, six hundred seven".