12381720480 has 96 divisors (see below), whose sum is σ = 43336036800. Its totient is φ = 3301790976.

The previous prime is 12381720473. The next prime is 12381720493. The reversal of 12381720480 is 8402718321.

12381720480 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 172 + 0 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428750 + ... + 1437389.

It is an arithmetic number, because the mean of its divisors is an integer number (451417050).

Almost surely, 2^12381720480 is an apocalyptic number.

12381720480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12381720480 is an abundant number, since it is smaller than the sum of its proper divisors (30954316320).

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

12381720480 is a wasteful number, since it uses less digits than its factorization.

12381720480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866163 (or 2866149 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 12381720480 in words is "twelve billion, three hundred eighty-one million, seven hundred twenty thousand, four hundred eighty".