12821675797 has 32 divisors (see below), whose sum is σ = 15187392000. Its totient is φ = 10818428544.

The previous prime is 12821675771. The next prime is 12821675813. The reversal of 12821675797 is 79757612821.

It is not a de Polignac number, because 12821675797 - 2¹⁹ = 12821151509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12821675707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8027803 + ... + 8029399.

It is an arithmetic number, because the mean of its divisors is an integer number (474606000).

Almost surely, 2^12821675797 is an apocalyptic number.

It is an amenable number.

12821675797 is a deficient number, since it is larger than the sum of its proper divisors (2365716203).

12821675797 is an equidigital number, since it uses as much as digits as its factorization.

12821675797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970 (or 1956 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 55.

The spelling of 12821675797 in words is "twelve billion, eight hundred twenty-one million, six hundred seventy-five thousand, seven hundred ninety-seven".