12587353642 has 4 divisors (see below), whose sum is σ = 18881030466. Its totient is φ = 6293676820.

The previous prime is 12587353627. The next prime is 12587353663. The reversal of 12587353642 is 24635378521.

12587353642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12515120641 + 72233001 = 111871^2 + 8499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12587353592 and 12587353601.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3146838409 + ... + 3146838412.

Almost surely, 2^12587353642 is an apocalyptic number.

12587353642 is a deficient number, since it is larger than the sum of its proper divisors (6293676824).

12587353642 is an equidigital number, since it uses as much as digits as its factorization.

12587353642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293676823.

The product of its digits is 1209600, while the sum is 46.

The spelling of 12587353642 in words is "twelve billion, five hundred eighty-seven million, three hundred fifty-three thousand, six hundred forty-two".