12428685804 has 12 divisors (see below), whose sum is σ = 29000266904. Its totient is φ = 4142895264.

The previous prime is 12428685721. The next prime is 12428685809. The reversal of 12428685804 is 40858682421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12428685804² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12428685809) 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 3 ways as a sum of consecutive naturals, for example, 517861897 + ... + 517861920.

Almost surely, 2^12428685804 is an apocalyptic number.

It is an amenable number.

12428685804 is an abundant number, since it is smaller than the sum of its proper divisors (16571581100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12428685804 is a wasteful number, since it uses less digits than its factorization.

12428685804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035723824 (or 1035723822 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 12428685804 in words is "twelve billion, four hundred twenty-eight million, six hundred eighty-five thousand, eight hundred four".