12782580331 has 8 divisors (see below), whose sum is σ = 13196320128. Its totient is φ = 12368928000.

The previous prime is 12782580323. The next prime is 12782580337. The reversal of 12782580331 is 13308528721.

It is a happy number.

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 12782580331 - 2³ = 12782580323 is a prime.

It is a super-2 number, since 2×12782580331² (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 (12782580337) 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, 412251 + ... + 442171.

It is an arithmetic number, because the mean of its divisors is an integer number (1649540016).

Almost surely, 2^12782580331 is an apocalyptic number.

12782580331 is a deficient number, since it is larger than the sum of its proper divisors (413739797).

12782580331 is a wasteful number, since it uses less digits than its factorization.

12782580331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43733.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12782580331 in words is "twelve billion, seven hundred eighty-two million, five hundred eighty thousand, three hundred thirty-one".