12446564464 has 40 divisors (see below), whose sum is σ = 24474683520. Its totient is φ = 6130941888.

The previous prime is 12446564461. The next prime is 12446564509. The reversal of 12446564464 is 46446564421.

12446564464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12446564461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463699 + ... + 489805.

It is an arithmetic number, because the mean of its divisors is an integer number (611867088).

Almost surely, 2^12446564464 is an apocalyptic number.

It is an amenable number.

12446564464 is a deficient number, since it is larger than the sum of its proper divisors (12028119056).

12446564464 is a wasteful number, since it uses less digits than its factorization.

12446564464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26557 (or 26551 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 46.

The spelling of 12446564464 in words is "twelve billion, four hundred forty-six million, five hundred sixty-four thousand, four hundred sixty-four".