73215721322 has 8 divisors (see below), whose sum is σ = 113366278272. Its totient is φ = 35426961900.

The previous prime is 73215721321. The next prime is 73215721333. The reversal of 73215721322 is 22312751237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (73215721321) 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, 590449304 + ... + 590449427.

It is an arithmetic number, because the mean of its divisors is an integer number (14170784784).

Almost surely, 2^73215721322 is an apocalyptic number.

73215721322 is a deficient number, since it is larger than the sum of its proper divisors (40150556950).

73215721322 is a wasteful number, since it uses less digits than its factorization.

73215721322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180898764.

The product of its digits is 35280, while the sum is 35.

The spelling of 73215721322 in words is "seventy-three billion, two hundred fifteen million, seven hundred twenty-one thousand, three hundred twenty-two".