72853982438 has 8 divisors (see below), whose sum is σ = 109282981080. Its totient is φ = 36426322080.

The previous prime is 72853982437. The next prime is 72853982449. The reversal of 72853982438 is 83428935827.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72853982431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185123 + ... + 424238.

It is an arithmetic number, because the mean of its divisors is an integer number (13660372635).

Almost surely, 2^72853982438 is an apocalyptic number.

72853982438 is a deficient number, since it is larger than the sum of its proper divisors (36428998642).

72853982438 is a wasteful number, since it uses less digits than its factorization.

72853982438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669142.

The product of its digits is 23224320, while the sum is 59.

The spelling of 72853982438 in words is "seventy-two billion, eight hundred fifty-three million, nine hundred eighty-two thousand, four hundred thirty-eight".