12642412551 has 16 divisors (see below), whose sum is σ = 16962045408. Its totient is φ = 8375628800.

The previous prime is 12642412493. The next prime is 12642412567. The reversal of 12642412551 is 15521424621.

It is a happy number.

12642412551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12642412551 - 2¹⁰ = 12642411527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642416551) 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 15 ways as a sum of consecutive naturals, for example, 508531 + ... + 532811.

It is an arithmetic number, because the mean of its divisors is an integer number (1060127838).

Almost surely, 2^12642412551 is an apocalyptic number.

12642412551 is a deficient number, since it is larger than the sum of its proper divisors (4319632857).

12642412551 is a wasteful number, since it uses less digits than its factorization.

12642412551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25362.

The product of its digits is 19200, while the sum is 33.

The spelling of 12642412551 in words is "twelve billion, six hundred forty-two million, four hundred twelve thousand, five hundred fifty-one".