12445505424 has 60 divisors (see below), whose sum is σ = 37996510032. Its totient is φ = 3771364800.

The previous prime is 12445505393. The next prime is 12445505431. The reversal of 12445505424 is 42450554421.

12445505424 is a `hidden beast` number, since 1 + 24 + 45 + 50 + 542 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3926922 + ... + 3930089.

Almost surely, 2^12445505424 is an apocalyptic number.

It is an amenable number.

12445505424 is an abundant number, since it is smaller than the sum of its proper divisors (25551004608).

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

12445505424 is a wasteful number, since it uses less digits than its factorization.

12445505424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857036 (or 7857027 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

The spelling of 12445505424 in words is "twelve billion, four hundred forty-five million, five hundred five thousand, four hundred twenty-four".