12955657925447 has 8 divisors (see below), whose sum is σ = 12993544935792. Its totient is φ = 12917820801600.

The previous prime is 12955657925381. The next prime is 12955657925477. The reversal of 12955657925447 is 74452975655921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12955657925447 - 2¹² = 12955657921351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12955657925477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11951429 + ... + 12990302.

It is an arithmetic number, because the mean of its divisors is an integer number (1624193116974).

Almost surely, 2^{12955657925447} is an apocalyptic number.

12955657925447 is a deficient number, since it is larger than the sum of its proper divisors (37887010345).

12955657925447 is an equidigital number, since it uses as much as digits as its factorization.

12955657925447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24943249.

The product of its digits is 952560000, while the sum is 71.

The spelling of 12955657925447 in words is "twelve trillion, nine hundred fifty-five billion, six hundred fifty-seven million, nine hundred twenty-five thousand, four hundred forty-seven".