72303105236 has 12 divisors (see below), whose sum is σ = 127082970420. Its totient is φ = 35993685120.

The previous prime is 72303105221. The next prime is 72303105247. The reversal of 72303105236 is 63250130327.

It can be written as a sum of positive squares in 2 ways, for example, as 42250802500 + 30052302736 = 205550^2 + 173356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39465845 + ... + 39467676.

It is an arithmetic number, because the mean of its divisors is an integer number (10590247535).

Almost surely, 2^72303105236 is an apocalyptic number.

It is an amenable number.

72303105236 is a deficient number, since it is larger than the sum of its proper divisors (54779865184).

72303105236 is a wasteful number, since it uses less digits than its factorization.

72303105236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78933754 (or 78933752 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 32.

The spelling of 72303105236 in words is "seventy-two billion, three hundred three million, one hundred five thousand, two hundred thirty-six".