12865474819 has 8 divisors (see below), whose sum is σ = 12940551360. Its totient is φ = 12790434216.

The previous prime is 12865474801. The next prime is 12865474823. The reversal of 12865474819 is 91847456821.

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 12865474819 - 2⁷ = 12865474691 is a prime.

It is a super-2 number, since 2×12865474819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12865474819.

It is not an unprimeable number, because it can be changed into a prime (12865474849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104544 + ... + 1116130.

It is an arithmetic number, because the mean of its divisors is an integer number (1617568920).

Almost surely, 2^12865474819 is an apocalyptic number.

12865474819 is a deficient number, since it is larger than the sum of its proper divisors (75076541).

12865474819 is a wasteful number, since it uses less digits than its factorization.

12865474819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17969.

The product of its digits is 3870720, while the sum is 55.

The spelling of 12865474819 in words is "twelve billion, eight hundred sixty-five million, four hundred seventy-four thousand, eight hundred nineteen".