12993647251 has 8 divisors (see below), whose sum is σ = 14006512800. Its totient is φ = 11982689472.

The previous prime is 12993647243. The next prime is 12993647291. The reversal of 12993647251 is 15274639921.

12993647251 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 not a de Polignac number, because 12993647251 - 2³ = 12993647243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12993647195 and 12993647204.

It is not an unprimeable number, because it can be changed into a prime (12993647291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462775 + ... + 490048.

It is an arithmetic number, because the mean of its divisors is an integer number (1750814100).

Almost surely, 2^12993647251 is an apocalyptic number.

12993647251 is a deficient number, since it is larger than the sum of its proper divisors (1012865549).

12993647251 is a wasteful number, since it uses less digits than its factorization.

12993647251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953885.

The product of its digits is 816480, while the sum is 49.

The spelling of 12993647251 in words is "twelve billion, nine hundred ninety-three million, six hundred forty-seven thousand, two hundred fifty-one".