12545042406 has 16 divisors (see below), whose sum is σ = 27020091504. Its totient is φ = 3860013024.

The previous prime is 12545042381. The next prime is 12545042417. The reversal of 12545042406 is 60424054521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80416861 + ... + 80417016.

It is an arithmetic number, because the mean of its divisors is an integer number (1688755719).

Almost surely, 2^12545042406 is an apocalyptic number.

12545042406 is an abundant number, since it is smaller than the sum of its proper divisors (14475049098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12545042406 is a wasteful number, since it uses less digits than its factorization.

12545042406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160833895.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 12545042406 its reverse (60424054521), we get a palindrome (72969096927).

The spelling of 12545042406 in words is "twelve billion, five hundred forty-five million, forty-two thousand, four hundred six".