12556483819 has 4 divisors (see below), whose sum is σ = 13697982360. Its totient is φ = 11414985280.

The previous prime is 12556483813. The next prime is 12556483831. The reversal of 12556483819 is 91838465521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91838465521 = 11 ⋅8348951411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12556483819 is a prime.

It is a super-2 number, since 2×12556483819² (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 (12556483813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570749254 + ... + 570749275.

It is an arithmetic number, because the mean of its divisors is an integer number (3424495590).

Almost surely, 2^12556483819 is an apocalyptic number.

12556483819 is a deficient number, since it is larger than the sum of its proper divisors (1141498541).

12556483819 is a wasteful number, since it uses less digits than its factorization.

12556483819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141498540.

The product of its digits is 2073600, while the sum is 52.

The spelling of 12556483819 in words is "twelve billion, five hundred fifty-six million, four hundred eighty-three thousand, eight hundred nineteen".