12947117776536 has 32 divisors (see below), whose sum is σ = 32496749812800. Its totient is φ = 4298511876000.

The previous prime is 12947117776529. The next prime is 12947117776547. The reversal of 12947117776536 is 63567771174921.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074621946 + ... + 1074633993.

It is an arithmetic number, because the mean of its divisors is an integer number (1015523431650).

Almost surely, 2^{12947117776536} is an apocalyptic number.

It is an amenable number.

12947117776536 is an abundant number, since it is smaller than the sum of its proper divisors (19549632036264).

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

12947117776536 is a wasteful number, since it uses less digits than its factorization.

12947117776536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149256199 (or 2149256195 counting only the distinct ones).

The product of its digits is 93350880, while the sum is 66.

The spelling of 12947117776536 in words is "twelve trillion, nine hundred forty-seven billion, one hundred seventeen million, seven hundred seventy-six thousand, five hundred thirty-six".