12546882420 has 24 divisors (see below), whose sum is σ = 35131270944. Its totient is φ = 3345835296.

The previous prime is 12546882407. The next prime is 12546882437. The reversal of 12546882420 is 2428864521.

It is a super-2 number, since 2×12546882420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104557294 + ... + 104557413.

It is an arithmetic number, because the mean of its divisors is an integer number (1463802956).

Almost surely, 2^12546882420 is an apocalyptic number.

12546882420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12546882420 is an abundant number, since it is smaller than the sum of its proper divisors (22584388524).

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

12546882420 is a wasteful number, since it uses less digits than its factorization.

12546882420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209114719 (or 209114717 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 12546882420 in words is "twelve billion, five hundred forty-six million, eight hundred eighty-two thousand, four hundred twenty".