12687235582 has 16 divisors (see below), whose sum is σ = 21751867872. Its totient is φ = 5436806400.

The previous prime is 12687235513. The next prime is 12687235591. The reversal of 12687235582 is 28553278621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104082 + ... + 190282.

It is an arithmetic number, because the mean of its divisors is an integer number (1359491742).

Almost surely, 2^12687235582 is an apocalyptic number.

12687235582 is a deficient number, since it is larger than the sum of its proper divisors (9064632290).

12687235582 is a wasteful number, since it uses less digits than its factorization.

12687235582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96723.

The product of its digits is 1612800, while the sum is 49.

The spelling of 12687235582 in words is "twelve billion, six hundred eighty-seven million, two hundred thirty-five thousand, five hundred eighty-two".