12551364135 has 24 divisors (see below), whose sum is σ = 22053726864. Its totient is φ = 6602359680.

The previous prime is 12551364121. The next prime is 12551364139. The reversal of 12551364135 is 53146315521.

12551364135 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 1 + 3 + 641 + 3 + 5 = 666.

It is not a de Polignac number, because 12551364135 - 2⁹ = 12551363623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12551364135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551364139) 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 23 ways as a sum of consecutive naturals, for example, 1907121 + ... + 1913690.

It is an arithmetic number, because the mean of its divisors is an integer number (918905286).

Almost surely, 2^12551364135 is an apocalyptic number.

12551364135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12551364135 is a deficient number, since it is larger than the sum of its proper divisors (9502362729).

12551364135 is a wasteful number, since it uses less digits than its factorization.

12551364135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820895 (or 3820892 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 12551364135 its reverse (53146315521), we get a palindrome (65697679656).

The spelling of 12551364135 in words is "twelve billion, five hundred fifty-one million, three hundred sixty-four thousand, one hundred thirty-five".