12939390387142 has 8 divisors (see below), whose sum is σ = 19409117353416. Its totient is φ = 6469684602672.

The previous prime is 12939390387113. The next prime is 12939390387163. The reversal of 12939390387142 is 24178309393921.

It is a happy number.

12939390387142 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 super-3 number, since 3×12939390387142³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668268 + ... + 6271759.

It is an arithmetic number, because the mean of its divisors is an integer number (2426139669177).

Almost surely, 2^{12939390387142} is an apocalyptic number.

12939390387142 is a deficient number, since it is larger than the sum of its proper divisors (6469726966274).

12939390387142 is an equidigital number, since it uses as much as digits as its factorization.

12939390387142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590902.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 12939390387142 in words is "twelve trillion, nine hundred thirty-nine billion, three hundred ninety million, three hundred eighty-seven thousand, one hundred forty-two".