12456678890006 has 32 divisors (see below), whose sum is σ = 20267477481888. Its totient is φ = 5707826392320.

The previous prime is 12456678889997. The next prime is 12456678890009. The reversal of 12456678890006 is 60009887665421.

It is a super-2 number, since 2×12456678890006² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12456678890009) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3590861 + ... + 6148791.

It is an arithmetic number, because the mean of its divisors is an integer number (633358671309).

Almost surely, 2^{12456678890006} is an apocalyptic number.

12456678890006 is a deficient number, since it is larger than the sum of its proper divisors (7810798591882).

12456678890006 is a wasteful number, since it uses less digits than its factorization.

12456678890006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559296.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 12456678890006 in words is "twelve trillion, four hundred fifty-six billion, six hundred seventy-eight million, eight hundred ninety thousand, six".