12817796507 has 8 divisors (see below), whose sum is σ = 13270195200. Its totient is φ = 12366091584.

The previous prime is 12817796443. The next prime is 12817796539. The reversal of 12817796507 is 70569771821.

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 12817796507 - 2⁶ = 12817796443 is a prime.

It is a super-2 number, since 2×12817796507² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12817796567) 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, 135698 + ... + 209879.

It is an arithmetic number, because the mean of its divisors is an integer number (1658774400).

Almost surely, 2^12817796507 is an apocalyptic number.

12817796507 is a deficient number, since it is larger than the sum of its proper divisors (452398693).

12817796507 is a wasteful number, since it uses less digits than its factorization.

12817796507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346885.

The product of its (nonzero) digits is 1481760, while the sum is 53.

The spelling of 12817796507 in words is "twelve billion, eight hundred seventeen million, seven hundred ninety-six thousand, five hundred seven".