73267328321 has 4 divisors (see below), whose sum is σ = 79927994544. Its totient is φ = 66606662100.

The previous prime is 73267328311. The next prime is 73267328357. The reversal of 73267328321 is 12382376237.

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 not a de Polignac number, because 73267328321 - 2¹⁸ = 73267066177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73267328311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330333095 + ... + 3330333116.

It is an arithmetic number, because the mean of its divisors is an integer number (19981998636).

Almost surely, 2^73267328321 is an apocalyptic number.

It is an amenable number.

73267328321 is a deficient number, since it is larger than the sum of its proper divisors (6660666223).

73267328321 is a wasteful number, since it uses less digits than its factorization.

73267328321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660666222.

The product of its digits is 508032, while the sum is 44.

The spelling of 73267328321 in words is "seventy-three billion, two hundred sixty-seven million, three hundred twenty-eight thousand, three hundred twenty-one".