12915129039 has 8 divisors (see below), whose sum is σ = 17224083072. Its totient is φ = 8608130520.

The previous prime is 12915129037. The next prime is 12915129049. The reversal of 12915129039 is 93092151921.

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

It is not a de Polignac number, because 12915129039 - 2¹ = 12915129037 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915129037) 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, 473397 + ... + 499934.

It is an arithmetic number, because the mean of its divisors is an integer number (2153010384).

Almost surely, 2^12915129039 is an apocalyptic number.

12915129039 is a deficient number, since it is larger than the sum of its proper divisors (4308954033).

12915129039 is an equidigital number, since it uses as much as digits as its factorization.

12915129039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977757.

The product of its (nonzero) digits is 43740, while the sum is 42.

The spelling of 12915129039 in words is "twelve billion, nine hundred fifteen million, one hundred twenty-nine thousand, thirty-nine".