72404432323 has 8 divisors (see below), whose sum is σ = 74159278160. Its totient is φ = 70669415520.

The previous prime is 72404432311. The next prime is 72404432389. The reversal of 72404432323 is 32323440427.

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

It is a cyclic number.

It is not a de Polignac number, because 72404432323 - 2⁵ = 72404432291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72404432923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4949868 + ... + 4964473.

It is an arithmetic number, because the mean of its divisors is an integer number (9269909770).

Almost surely, 2^72404432323 is an apocalyptic number.

72404432323 is a deficient number, since it is larger than the sum of its proper divisors (1754845837).

72404432323 is a wasteful number, since it uses less digits than its factorization.

72404432323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9914517.

The product of its (nonzero) digits is 96768, while the sum is 34.

The spelling of 72404432323 in words is "seventy-two billion, four hundred four million, four hundred thirty-two thousand, three hundred twenty-three".