12782069393 has 8 divisors (see below), whose sum is σ = 12974897448. Its totient is φ = 12589720704.

The previous prime is 12782069387. The next prime is 12782069441. The reversal of 12782069393 is 39396028721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6050195089 + 6731874304 = 77783^2 + 82048^2 .

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 12782069393 - 2²⁶ = 12714960529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12782069093) 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, 65930 + ... + 172947.

It is an arithmetic number, because the mean of its divisors is an integer number (1621862181).

Almost surely, 2^12782069393 is an apocalyptic number.

It is an amenable number.

12782069393 is a deficient number, since it is larger than the sum of its proper divisors (192828055).

12782069393 is an equidigital number, since it uses as much as digits as its factorization.

12782069393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239683.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 12782069393 in words is "twelve billion, seven hundred eighty-two million, sixty-nine thousand, three hundred ninety-three".