12705859580 has 48 divisors (see below), whose sum is σ = 27383289024. Its totient is φ = 4950443520.

The previous prime is 12705859577. The next prime is 12705859589. The reversal of 12705859580 is 8595850721.

It is a happy number.

It is a super-2 number, since 2×12705859580² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705859589) 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 15 ways as a sum of consecutive naturals, for example, 75104 + ... + 176216.

It is an arithmetic number, because the mean of its divisors is an integer number (570485188).

Almost surely, 2^12705859580 is an apocalyptic number.

12705859580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12705859580 is an abundant number, since it is smaller than the sum of its proper divisors (14677429444).

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

12705859580 is a wasteful number, since it uses less digits than its factorization.

12705859580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101286 (or 101284 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 50.

The spelling of 12705859580 in words is "twelve billion, seven hundred five million, eight hundred fifty-nine thousand, five hundred eighty".