12345679013568 has 56 divisors (see below), whose sum is σ = 33124674009600. Its totient is φ = 4057265399040.

The previous prime is 12345679013543. The next prime is 12345679013593. The reversal of 12345679013568 is 86531097654321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12345679013543) and next prime (12345679013593).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452806168 + ... + 452833431.

It is a 2-persistent number, because it is pandigital, and so is 2⋅12345679013568 = 24691358027136, but 3⋅12345679013568 = 37037037040704 is not.

Almost surely, 2^{12345679013568} is an apocalyptic number.

It is an amenable number.

12345679013568 is an abundant number, since it is smaller than the sum of its proper divisors (20778994996032).

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

12345679013568 is an equidigital number, since it uses as much as digits as its factorization.

12345679013568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905639685 (or 905639675 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 12345679013568 in words is "twelve trillion, three hundred forty-five billion, six hundred seventy-nine million, thirteen thousand, five hundred sixty-eight".