12439212061867 has 8 divisors (see below), whose sum is σ = 12775468306896. Its totient is φ = 12102959044512.

The previous prime is 12439212061847. The next prime is 12439212061889. The reversal of 12439212061867 is 76816021293421.

12439212061867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12439212061867 - 2²⁷ = 12439077844139 is a prime.

It is a super-2 number, since 2×12439212061867² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12439212061807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8408613 + ... + 9776665.

It is an arithmetic number, because the mean of its divisors is an integer number (1596933538362).

Almost surely, 2^{12439212061867} is an apocalyptic number.

12439212061867 is a deficient number, since it is larger than the sum of its proper divisors (336256245029).

12439212061867 is a wasteful number, since it uses less digits than its factorization.

12439212061867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613837.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 12439212061867 in words is "twelve trillion, four hundred thirty-nine billion, two hundred twelve million, sixty-one thousand, eight hundred sixty-seven".