12860928558 has 48 divisors (see below), whose sum is σ = 28347770880. Its totient is φ = 4213390608.

The previous prime is 12860928529. The next prime is 12860928581. The reversal of 12860928558 is 85582906821.

It is a happy number.

12860928558 is a `hidden beast` number, since 1 + 2 + 8 + 60 + 9 + 28 + 558 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218313 + ... + 270891.

It is an arithmetic number, because the mean of its divisors is an integer number (590578560).

Almost surely, 2^12860928558 is an apocalyptic number.

12860928558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12860928558 is an abundant number, since it is smaller than the sum of its proper divisors (15486842322).

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

12860928558 is a wasteful number, since it uses less digits than its factorization.

12860928558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52821 (or 52818 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 12860928558 in words is "twelve billion, eight hundred sixty million, nine hundred twenty-eight thousand, five hundred fifty-eight".