12794837649 has 8 divisors (see below), whose sum is σ = 18610672992. Its totient is φ = 7754447040.

The previous prime is 12794837641. The next prime is 12794837663. The reversal of 12794837649 is 94673849721.

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

It is not a de Polignac number, because 12794837649 - 2³ = 12794837641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12794837592 and 12794837601.

It is not an unprimeable number, because it can be changed into a prime (12794837641) 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, 193861144 + ... + 193861209.

It is an arithmetic number, because the mean of its divisors is an integer number (2326334124).

Almost surely, 2^12794837649 is an apocalyptic number.

It is an amenable number.

12794837649 is a deficient number, since it is larger than the sum of its proper divisors (5815835343).

12794837649 is a wasteful number, since it uses less digits than its factorization.

12794837649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387722367.

The product of its digits is 18289152, while the sum is 60.

The spelling of 12794837649 in words is "twelve billion, seven hundred ninety-four million, eight hundred thirty-seven thousand, six hundred forty-nine".