12715678134544 has 40 divisors (see below), whose sum is σ = 30715793938368. Its totient is φ = 4954160311680.

The previous prime is 12715678134503. The next prime is 12715678134659. The reversal of 12715678134544 is 44543187651721.

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, 5160582427 + ... + 5160584890.

Almost surely, 2^{12715678134544} is an apocalyptic number.

12715678134544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12715678134544 is an abundant number, since it is smaller than the sum of its proper divisors (18000115803824).

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

12715678134544 is a wasteful number, since it uses less digits than its factorization.

12715678134544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10321167343 (or 10321167337 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 58.

The spelling of 12715678134544 in words is "twelve trillion, seven hundred fifteen billion, six hundred seventy-eight million, one hundred thirty-four thousand, five hundred forty-four".