73243805668 has 72 divisors (see below), whose sum is σ = 144109147392. Its totient is φ = 32533776000.

The previous prime is 73243805653. The next prime is 73243805683. The reversal of 73243805668 is 86650834237.

It is an interprime number because it is at equal distance from previous prime (73243805653) and next prime (73243805683).

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 23 ways as a sum of consecutive naturals, for example, 17309113 + ... + 17313343.

It is an arithmetic number, because the mean of its divisors is an integer number (2001515936).

Almost surely, 2^73243805668 is an apocalyptic number.

It is an amenable number.

73243805668 is a deficient number, since it is larger than the sum of its proper divisors (70865341724).

73243805668 is a wasteful number, since it uses less digits than its factorization.

73243805668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065 (or 5052 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 73243805668 in words is "seventy-three billion, two hundred forty-three million, eight hundred five thousand, six hundred sixty-eight".