12771530934534 has 40 divisors (see below), whose sum is σ = 28618281401688. Its totient is φ = 4257088954560.

The previous prime is 12771530934517. The next prime is 12771530934577. The reversal of 12771530934534 is 43543903517721.

12771530934534 is a `hidden beast` number, since 1 + 2 + 7 + 7 + 15 + 3 + 0 + 93 + 4 + 534 = 666.

It is a super-2 number, since 2×12771530934534² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 7292254 + ... + 8872430.

Almost surely, 2^{12771530934534} is an apocalyptic number.

12771530934534 is an abundant number, since it is smaller than the sum of its proper divisors (15846750467154).

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

12771530934534 is a wasteful number, since it uses less digits than its factorization.

12771530934534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630082 (or 1630073 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 54.

The spelling of 12771530934534 in words is "twelve trillion, seven hundred seventy-one billion, five hundred thirty million, nine hundred thirty-four thousand, five hundred thirty-four".