43284616321 has 4 divisors (see below), whose sum is σ = 43526430000. Its totient is φ = 43042802644.

The previous prime is 43284616307. The next prime is 43284616367. The reversal of 43284616321 is 12361648234.

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-43284616321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43284616121) 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 3 ways as a sum of consecutive naturals, for example, 120906571 + ... + 120906928.

It is an arithmetic number, because the mean of its divisors is an integer number (10881607500).

Almost surely, 2^43284616321 is an apocalyptic number.

It is an amenable number.

43284616321 is a deficient number, since it is larger than the sum of its proper divisors (241813679).

43284616321 is a wasteful number, since it uses less digits than its factorization.

43284616321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241813678.

The product of its digits is 165888, while the sum is 40.

The spelling of 43284616321 in words is "forty-three billion, two hundred eighty-four million, six hundred sixteen thousand, three hundred twenty-one".