11446143463421 has 4 divisors (see below), whose sum is σ = 11447271061344. Its totient is φ = 11445015865500.

The previous prime is 11446143463387. The next prime is 11446143463427. The reversal of 11446143463421 is 12436434164411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11446143463421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11446143463427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563783735 + ... + 563804036.

It is an arithmetic number, because the mean of its divisors is an integer number (2861817765336).

Almost surely, 2^{11446143463421} is an apocalyptic number.

It is an amenable number.

11446143463421 is a deficient number, since it is larger than the sum of its proper divisors (1127597923).

11446143463421 is a wasteful number, since it uses less digits than its factorization.

11446143463421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127597922.

The product of its digits is 663552, while the sum is 44.

The spelling of 11446143463421 in words is "eleven trillion, four hundred forty-six billion, one hundred forty-three million, four hundred sixty-three thousand, four hundred twenty-one".