12445802445578 has 8 divisors (see below), whose sum is σ = 18668966935620. Its totient is φ = 6222813467040.

The previous prime is 12445802445577. The next prime is 12445802445581. The reversal of 12445802445578 is 87554420854421.

It can be written as a sum of positive squares in 2 ways, for example, as 12437591729809 + 8210715769 = 3526697^2 + 90613^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12445802445577) 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, 43700453 + ... + 43984328.

Almost surely, 2^{12445802445578} is an apocalyptic number.

12445802445578 is a deficient number, since it is larger than the sum of its proper divisors (6223164490042).

12445802445578 is an equidigital number, since it uses as much as digits as its factorization.

12445802445578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87755752.

The product of its (nonzero) digits is 57344000, while the sum is 59.

The spelling of 12445802445578 in words is "twelve trillion, four hundred forty-five billion, eight hundred two million, four hundred forty-five thousand, five hundred seventy-eight".