12783992831 has 8 divisors (see below), whose sum is σ = 13226593680. Its totient is φ = 12341510272.

The previous prime is 12783992807. The next prime is 12783992849. The reversal of 12783992831 is 13829938721.

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 12783992831 - 2¹⁰ = 12783991807 is a prime.

It is a super-2 number, since 2×12783992831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12783992131) 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, 228656 + ... + 279018.

It is an arithmetic number, because the mean of its divisors is an integer number (1653324210).

Almost surely, 2^12783992831 is an apocalyptic number.

12783992831 is a deficient number, since it is larger than the sum of its proper divisors (442600849).

12783992831 is an equidigital number, since it uses as much as digits as its factorization.

12783992831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59145.

The product of its digits is 1306368, while the sum is 53.

The spelling of 12783992831 in words is "twelve billion, seven hundred eighty-three million, nine hundred ninety-two thousand, eight hundred thirty-one".