12581328707 has 8 divisors (see below), whose sum is σ = 12924652416. Its totient is φ = 12238178112.

The previous prime is 12581328701. The next prime is 12581328779. The reversal of 12581328707 is 70782318521.

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 12581328707 - 2⁴ = 12581328691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12581328701) 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, 111503 + ... + 193895.

It is an arithmetic number, because the mean of its divisors is an integer number (1615581552).

Almost surely, 2^12581328707 is an apocalyptic number.

12581328707 is a deficient number, since it is larger than the sum of its proper divisors (343323709).

12581328707 is an equidigital number, since it uses as much as digits as its factorization.

12581328707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86557.

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 12581328707 in words is "twelve billion, five hundred eighty-one million, three hundred twenty-eight thousand, seven hundred seven".