12791650538 has 8 divisors (see below), whose sum is σ = 19204565088. Its totient is φ = 6390128844.

The previous prime is 12791650523. The next prime is 12791650567. The reversal of 12791650538 is 83505619721.

12791650538 is digitally balanced in base 5, 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 a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12791650492 and 12791650501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845406 + ... + 2849897.

It is an arithmetic number, because the mean of its divisors is an integer number (2400570636).

Almost surely, 2^12791650538 is an apocalyptic number.

12791650538 is a deficient number, since it is larger than the sum of its proper divisors (6412914550).

12791650538 is a wasteful number, since it uses less digits than its factorization.

12791650538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696428.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 12791650538 in words is "twelve billion, seven hundred ninety-one million, six hundred fifty thousand, five hundred thirty-eight".