12731878544134 has 16 divisors (see below), whose sum is σ = 19339864096320. Its totient is φ = 6285259693440.

The previous prime is 12731878544131. The next prime is 12731878544149. The reversal of 12731878544134 is 43144587813721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731878544131) 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, 10108302 + ... + 11297854.

It is an arithmetic number, because the mean of its divisors is an integer number (1208741506020).

Almost surely, 2^{12731878544134} is an apocalyptic number.

12731878544134 is a deficient number, since it is larger than the sum of its proper divisors (6607985552186).

12731878544134 is a wasteful number, since it uses less digits than its factorization.

12731878544134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257375.

The product of its digits is 18063360, while the sum is 58.

The spelling of 12731878544134 in words is "twelve trillion, seven hundred thirty-one billion, eight hundred seventy-eight million, five hundred forty-four thousand, one hundred thirty-four".