12305727717812 has 48 divisors (see below), whose sum is σ = 22037720570880. Its totient is φ = 6009770344032.

The previous prime is 12305727717791. The next prime is 12305727717889. The reversal of 12305727717812 is 21871772750321.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 781854239 + ... + 781869977.

It is an arithmetic number, because the mean of its divisors is an integer number (459119178560).

Almost surely, 2^{12305727717812} is an apocalyptic number.

It is an amenable number.

12305727717812 is a deficient number, since it is larger than the sum of its proper divisors (9731992853068).

12305727717812 is a wasteful number, since it uses less digits than its factorization.

12305727717812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23940 (or 23938 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 53.

The spelling of 12305727717812 in words is "twelve trillion, three hundred five billion, seven hundred twenty-seven million, seven hundred seventeen thousand, eight hundred twelve".