12545478126208 has 64 divisors (see below), whose sum is σ = 27019399874400. Its totient is φ = 5781984187392.

The previous prime is 12545478126199. The next prime is 12545478126217. The reversal of 12545478126208 is 80262187454521.

It is an interprime number because it is at equal distance from previous prime (12545478126199) and next prime (12545478126217).

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69619510 + ... + 69799477.

Almost surely, 2^{12545478126208} is an apocalyptic number.

It is an amenable number.

12545478126208 is an abundant number, since it is smaller than the sum of its proper divisors (14473921748192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12545478126208 is a wasteful number, since it uses less digits than its factorization.

12545478126208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139419057 (or 139419045 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 55.

The spelling of 12545478126208 in words is "twelve trillion, five hundred forty-five billion, four hundred seventy-eight million, one hundred twenty-six thousand, two hundred eight".