12893534459427 has 4 divisors (see below), whose sum is σ = 17191379279240. Its totient is φ = 8595689639616.

The previous prime is 12893534459419. The next prime is 12893534459431. The reversal of 12893534459427 is 72495443539821.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12893534459427 - 2³ = 12893534459419 is a prime.

It is a super-2 number, since 2×12893534459427² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12893534459467) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2148922409902 + ... + 2148922409907.

It is an arithmetic number, because the mean of its divisors is an integer number (4297844819810).

Almost surely, 2^{12893534459427} is an apocalyptic number.

12893534459427 is a deficient number, since it is larger than the sum of its proper divisors (4297844819813).

12893534459427 is an equidigital number, since it uses as much as digits as its factorization.

12893534459427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297844819812.

The product of its digits is 261273600, while the sum is 66.

The spelling of 12893534459427 in words is "twelve trillion, eight hundred ninety-three billion, five hundred thirty-four million, four hundred fifty-nine thousand, four hundred twenty-seven".