12642686267486 has 128 divisors (see below), whose sum is σ = 22738619635200. Its totient is φ = 5209408512000.

The previous prime is 12642686267473. The next prime is 12642686267489. The reversal of 12642686267486 is 68476268624621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642686267489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 369015425 + ... + 369049683.

It is an arithmetic number, because the mean of its divisors is an integer number (177645465900).

Almost surely, 2^{12642686267486} is an apocalyptic number.

12642686267486 is a deficient number, since it is larger than the sum of its proper divisors (10095933367714).

12642686267486 is a wasteful number, since it uses less digits than its factorization.

12642686267486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34746.

The product of its digits is 445906944, while the sum is 68.

The spelling of 12642686267486 in words is "twelve trillion, six hundred forty-two billion, six hundred eighty-six million, two hundred sixty-seven thousand, four hundred eighty-six".