12545042405 has 8 divisors (see below), whose sum is σ = 17204629632. Its totient is φ = 8602314768.

The previous prime is 12545042381. The next prime is 12545042417. The reversal of 12545042405 is 50424054521.

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 12545042405 - 2¹⁶ = 12544976869 is a prime.

It is a Duffinian number.

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, 179214857 + ... + 179214926.

It is an arithmetic number, because the mean of its divisors is an integer number (2150578704).

Almost surely, 2^12545042405 is an apocalyptic number.

It is an amenable number.

12545042405 is a deficient number, since it is larger than the sum of its proper divisors (4659587227).

12545042405 is an equidigital number, since it uses as much as digits as its factorization.

12545042405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358429795.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 12545042405 its reverse (50424054521), we get a palindrome (62969096926).

The spelling of 12545042405 in words is "twelve billion, five hundred forty-five million, forty-two thousand, four hundred five".