12858405813 has 24 divisors (see below), whose sum is σ = 20272988736. Its totient is φ = 7788643200.

The previous prime is 12858405767. The next prime is 12858405853. The reversal of 12858405813 is 31850485821.

12858405813 is a `hidden beast` number, since 1 + 2 + 8 + 584 + 0 + 58 + 13 = 666.

It is not a de Polignac number, because 12858405813 - 2⁸ = 12858405557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858405853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147693 + ... + 218013.

It is an arithmetic number, because the mean of its divisors is an integer number (844707864).

Almost surely, 2^12858405813 is an apocalyptic number.

It is an amenable number.

12858405813 is a deficient number, since it is larger than the sum of its proper divisors (7414582923).

12858405813 is a wasteful number, since it uses less digits than its factorization.

12858405813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72185 (or 72182 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 12858405813 in words is "twelve billion, eight hundred fifty-eight million, four hundred five thousand, eight hundred thirteen".