12425637643 has 8 divisors (see below), whose sum is σ = 12699321408. Its totient is φ = 12152341824.

The previous prime is 12425637617. The next prime is 12425637647. The reversal of 12425637643 is 34673652421.

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 12425637643 - 2²⁹ = 11888766731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12425637643.

It is not an unprimeable number, because it can be changed into a prime (12425637647) 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, 31746 + ... + 160807.

It is an arithmetic number, because the mean of its divisors is an integer number (1587415176).

Almost surely, 2^12425637643 is an apocalyptic number.

12425637643 is a deficient number, since it is larger than the sum of its proper divisors (273683765).

12425637643 is a wasteful number, since it uses less digits than its factorization.

12425637643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193973.

The product of its digits is 725760, while the sum is 43.

The spelling of 12425637643 in words is "twelve billion, four hundred twenty-five million, six hundred thirty-seven thousand, six hundred forty-three".