12858217326 has 12 divisors (see below), whose sum is σ = 27859470912. Its totient is φ = 4286072436.

The previous prime is 12858217313. The next prime is 12858217343. The reversal of 12858217326 is 62371285821.

12858217326 is a `hidden beast` number, since 1 + 28 + 582 + 17 + 32 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357172686 + ... + 357172721.

It is an arithmetic number, because the mean of its divisors is an integer number (2321622576).

Almost surely, 2^12858217326 is an apocalyptic number.

12858217326 is an abundant number, since it is smaller than the sum of its proper divisors (15001253586).

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

12858217326 is a wasteful number, since it uses less digits than its factorization.

12858217326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714345415 (or 714345412 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The spelling of 12858217326 in words is "twelve billion, eight hundred fifty-eight million, two hundred seventeen thousand, three hundred twenty-six".