12824681580 has 36 divisors (see below), whose sum is σ = 38901534672. Its totient is φ = 3419915040.

The previous prime is 12824681557. The next prime is 12824681581. The reversal of 12824681580 is 8518642821.

12824681580 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 4 + 68 + 1 + 580 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (12824681581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35623936 + ... + 35624295.

Almost surely, 2^12824681580 is an apocalyptic number.

12824681580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12824681580 is an abundant number, since it is smaller than the sum of its proper divisors (26076853092).

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

12824681580 is a wasteful number, since it uses less digits than its factorization.

12824681580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71248246 (or 71248241 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The spelling of 12824681580 in words is "twelve billion, eight hundred twenty-four million, six hundred eighty-one thousand, five hundred eighty".