12749585612808 has 32 divisors (see below), whose sum is σ = 34771597126560. Its totient is φ = 3863510791680.

The previous prime is 12749585612723. The next prime is 12749585612867. The reversal of 12749585612808 is 80821658594721.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24146942185 + ... + 24146942712.

It is an arithmetic number, because the mean of its divisors is an integer number (1086612410205).

Almost surely, 2^{12749585612808} is an apocalyptic number.

It is an amenable number.

12749585612808 is an abundant number, since it is smaller than the sum of its proper divisors (22022011513752).

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

12749585612808 is a wasteful number, since it uses less digits than its factorization.

12749585612808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48293884917 (or 48293884913 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 66.

The spelling of 12749585612808 in words is "twelve trillion, seven hundred forty-nine billion, five hundred eighty-five million, six hundred twelve thousand, eight hundred eight".