12994754128447 has 96 divisors (see below), whose sum is σ = 17066527296000. Its totient is φ = 9660753722880.

The previous prime is 12994754128429. The next prime is 12994754128451. The reversal of 12994754128447 is 74482145749921.

It is not a de Polignac number, because 12994754128447 - 2¹¹ = 12994754126399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12994754128547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5439410329 + ... + 5439412717.

It is an arithmetic number, because the mean of its divisors is an integer number (177776326000).

Almost surely, 2^{12994754128447} is an apocalyptic number.

12994754128447 is a deficient number, since it is larger than the sum of its proper divisors (4071773167553).

12994754128447 is a wasteful number, since it uses less digits than its factorization.

12994754128447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321 (or 4308 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 67.

The spelling of 12994754128447 in words is "twelve trillion, nine hundred ninety-four billion, seven hundred fifty-four million, one hundred twenty-eight thousand, four hundred forty-seven".