12646015386 has 16 divisors (see below), whose sum is σ = 26779797504. Its totient is φ = 3967377344.

The previous prime is 12646015321. The next prime is 12646015397. The reversal of 12646015386 is 68351064621.

12646015386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 61990170 + ... + 61990373.

It is an arithmetic number, because the mean of its divisors is an integer number (1673737344).

Almost surely, 2^12646015386 is an apocalyptic number.

12646015386 is an abundant number, since it is smaller than the sum of its proper divisors (14133782118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12646015386 is a wasteful number, since it uses less digits than its factorization.

12646015386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123980565.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 12646015386 in words is "twelve billion, six hundred forty-six million, fifteen thousand, three hundred eighty-six".