12464000021 has 8 divisors (see below), whose sum is σ = 13605012288. Its totient is φ = 11324308000.

The previous prime is 12463999949. The next prime is 12464000053. The reversal of 12464000021 is 12000046421.

12464000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12464000021 - 2¹⁸ = 12463737877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12463999957 and 12464000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12464000221) 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, 310265 + ... + 348126.

It is an arithmetic number, because the mean of its divisors is an integer number (1700626536).

Almost surely, 2^12464000021 is an apocalyptic number.

12464000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12464000021 is a deficient number, since it is larger than the sum of its proper divisors (1141012267).

12464000021 is a wasteful number, since it uses less digits than its factorization.

12464000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660123.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12464000021 its reverse (12000046421), we get a palindrome (24464046442).

The spelling of 12464000021 in words is "twelve billion, four hundred sixty-four million, twenty-one", and thus it is an aban number.