12453205642 has 8 divisors (see below), whose sum is σ = 18701456256. Its totient is φ = 6219386892.

The previous prime is 12453205631. The next prime is 12453205649. The reversal of 12453205642 is 24650235421.

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

It is a junction number, because it is equal to n+sod(n) for n = 12453205598 and 12453205607.

It is not an unprimeable number, because it can be changed into a prime (12453205649) 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, 3605808 + ... + 3609259.

It is an arithmetic number, because the mean of its divisors is an integer number (2337682032).

Almost surely, 2^12453205642 is an apocalyptic number.

12453205642 is a deficient number, since it is larger than the sum of its proper divisors (6248250614).

12453205642 is an equidigital number, since it uses as much as digits as its factorization.

12453205642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7215932.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 12453205642 in words is "twelve billion, four hundred fifty-three million, two hundred five thousand, six hundred forty-two".