72816912199 has 8 divisors (see below), whose sum is σ = 73124402400. Its totient is φ = 72510068736.

The previous prime is 72816912191. The next prime is 72816912251. The reversal of 72816912199 is 99121961827.

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 72816912199 - 2³ = 72816912191 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 (72816912191) 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, 64639 + ... + 387055.

It is an arithmetic number, because the mean of its divisors is an integer number (9140550300).

Almost surely, 2^72816912199 is an apocalyptic number.

72816912199 is a deficient number, since it is larger than the sum of its proper divisors (307490201).

72816912199 is a wasteful number, since it uses less digits than its factorization.

72816912199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323369.

The product of its digits is 979776, while the sum is 55.

The spelling of 72816912199 in words is "seventy-two billion, eight hundred sixteen million, nine hundred twelve thousand, one hundred ninety-nine".