12645112447 has 8 divisors (see below), whose sum is σ = 13923591552. Its totient is φ = 11388120600.

The previous prime is 12645112439. The next prime is 12645112481. The reversal of 12645112447 is 74421154621.

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 12645112447 - 2³ = 12645112439 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 (12645113447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5370579 + ... + 5372932.

It is an arithmetic number, because the mean of its divisors is an integer number (1740448944).

Almost surely, 2^12645112447 is an apocalyptic number.

12645112447 is a deficient number, since it is larger than the sum of its proper divisors (1278479105).

12645112447 is a wasteful number, since it uses less digits than its factorization.

12645112447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10743629.

The product of its digits is 53760, while the sum is 37.

The spelling of 12645112447 in words is "twelve billion, six hundred forty-five million, one hundred twelve thousand, four hundred forty-seven".