12484663540 has 12 divisors (see below), whose sum is σ = 26217793476. Its totient is φ = 4993865408.

The previous prime is 12484663523. The next prime is 12484663561. The reversal of 12484663540 is 4536648421.

It can be written as a sum of positive squares in 2 ways, for example, as 6794375184 + 5690288356 = 82428^2 + 75434^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312116569 + ... + 312116608.

It is an arithmetic number, because the mean of its divisors is an integer number (2184816123).

Almost surely, 2^12484663540 is an apocalyptic number.

12484663540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12484663540 is an abundant number, since it is smaller than the sum of its proper divisors (13733129936).

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

12484663540 is a wasteful number, since it uses less digits than its factorization.

12484663540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624233186 (or 624233184 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 12484663540 in words is "twelve billion, four hundred eighty-four million, six hundred sixty-three thousand, five hundred forty".