72800379999 has 96 divisors (see below), whose sum is σ = 117044928000. Its totient is φ = 43443848448.

The previous prime is 72800379989. The next prime is 72800380021. The reversal of 72800379999 is 99997300827.

It is not a de Polignac number, because 72800379999 - 2¹² = 72800375903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72800379929) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35878917 + ... + 35880945.

It is an arithmetic number, because the mean of its divisors is an integer number (1219218000).

Almost surely, 2^72800379999 is an apocalyptic number.

72800379999 is a deficient number, since it is larger than the sum of its proper divisors (44244548001).

72800379999 is a wasteful number, since it uses less digits than its factorization.

72800379999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The spelling of 72800379999 in words is "seventy-two billion, eight hundred million, three hundred seventy-nine thousand, nine hundred ninety-nine".