12634265281 has 8 divisors (see below), whose sum is σ = 13874113728. Its totient is φ = 11409630000.

The previous prime is 12634265279. The next prime is 12634265291. The reversal of 12634265281 is 18256243621.

12634265281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12634265281 - 2¹ = 12634265279 is a prime.

It is a super-2 number, since 2×12634265281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12634265201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3801550 + ... + 3804871.

It is an arithmetic number, because the mean of its divisors is an integer number (1734264216).

Almost surely, 2^12634265281 is an apocalyptic number.

12634265281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12634265281 is a deficient number, since it is larger than the sum of its proper divisors (1239848447).

12634265281 is a wasteful number, since it uses less digits than its factorization.

12634265281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606583.

The product of its digits is 138240, while the sum is 40.

The spelling of 12634265281 in words is "twelve billion, six hundred thirty-four million, two hundred sixty-five thousand, two hundred eighty-one".