73226819999 has 4 divisors (see below), whose sum is σ = 73242309360. Its totient is φ = 73211330640.

The previous prime is 73226819993. The next prime is 73226820001. The reversal of 73226819999 is 99991862237.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73226819999 - 2¹⁶ = 73226754463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73226819993) 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, 7737587 + ... + 7747044.

It is an arithmetic number, because the mean of its divisors is an integer number (18310577340).

Almost surely, 2^73226819999 is an apocalyptic number.

73226819999 is a deficient number, since it is larger than the sum of its proper divisors (15489361).

73226819999 is a wasteful number, since it uses less digits than its factorization.

73226819999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489360.

The product of its digits is 26453952, while the sum is 65.

The spelling of 73226819999 in words is "seventy-three billion, two hundred twenty-six million, eight hundred nineteen thousand, nine hundred ninety-nine".