12939215399 has 8 divisors (see below), whose sum is σ = 14122213392. Its totient is φ = 11757335040.

The previous prime is 12939215383. The next prime is 12939215407. The reversal of 12939215399 is 99351293921.

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

It is not a de Polignac number, because 12939215399 - 2⁴ = 12939215383 is a prime.

It is a super-4 number, since 4×12939215399⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12939215399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939217399) 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, 255104 + ... + 301589.

It is an arithmetic number, because the mean of its divisors is an integer number (1765276674).

Almost surely, 2^12939215399 is an apocalyptic number.

12939215399 is a deficient number, since it is larger than the sum of its proper divisors (1182997993).

12939215399 is a wasteful number, since it uses less digits than its factorization.

12939215399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558817.

The product of its digits is 1180980, while the sum is 53.

The spelling of 12939215399 in words is "twelve billion, nine hundred thirty-nine million, two hundred fifteen thousand, three hundred ninety-nine".