12799434651 has 8 divisors (see below), whose sum is σ = 17387911440. Its totient is φ = 8371957152.

The previous prime is 12799434643. The next prime is 12799434667. The reversal of 12799434651 is 15643499721.

It is a happy number.

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

It is not a de Polignac number, because 12799434651 - 2³ = 12799434643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12799434594 and 12799434603.

It is not an unprimeable number, because it can be changed into a prime (12799334651) 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, 40249636 + ... + 40249953.

It is an arithmetic number, because the mean of its divisors is an integer number (2173488930).

Almost surely, 2^12799434651 is an apocalyptic number.

12799434651 is a deficient number, since it is larger than the sum of its proper divisors (4588476789).

12799434651 is an equidigital number, since it uses as much as digits as its factorization.

12799434651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80499645.

The product of its digits is 1632960, while the sum is 51.

The spelling of 12799434651 in words is "twelve billion, seven hundred ninety-nine million, four hundred thirty-four thousand, six hundred fifty-one".