12587778742 has 16 divisors (see below), whose sum is σ = 23540781312. Its totient is φ = 4904329320.

The previous prime is 12587778737. The next prime is 12587778779. The reversal of 12587778742 is 24787778521.

12587778742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 40869258 + ... + 40869565.

It is an arithmetic number, because the mean of its divisors is an integer number (1471298832).

Almost surely, 2^12587778742 is an apocalyptic number.

12587778742 is a deficient number, since it is larger than the sum of its proper divisors (10953002570).

12587778742 is a wasteful number, since it uses less digits than its factorization.

12587778742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81738843.

The product of its digits is 12293120, while the sum is 58.

The spelling of 12587778742 in words is "twelve billion, five hundred eighty-seven million, seven hundred seventy-eight thousand, seven hundred forty-two".