12827743984581 has 8 divisors (see below), whose sum is σ = 17655389570304. Its totient is φ = 8275963860960.

The previous prime is 12827743984553. The next prime is 12827743984597. The reversal of 12827743984581 is 18548934772821.

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

It is not a de Polignac number, because 12827743984581 - 2³¹ = 12825596500933 is a prime.

It is a super-2 number, since 2×12827743984581² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12827743984501) 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, 68966365416 + ... + 68966365601.

It is an arithmetic number, because the mean of its divisors is an integer number (2206923696288).

Almost surely, 2^{12827743984581} is an apocalyptic number.

It is an amenable number.

12827743984581 is a deficient number, since it is larger than the sum of its proper divisors (4827645585723).

12827743984581 is a wasteful number, since it uses less digits than its factorization.

12827743984581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137932731051.

The product of its digits is 216760320, while the sum is 69.

The spelling of 12827743984581 in words is "twelve trillion, eight hundred twenty-seven billion, seven hundred forty-three million, nine hundred eighty-four thousand, five hundred eighty-one".