72428850338 has 16 divisors (see below), whose sum is σ = 117422846520. Its totient is φ = 33308015616.

The previous prime is 72428850331. The next prime is 72428850341. The reversal of 72428850338 is 83305882427.

It can be written as a sum of positive squares in 4 ways, for example, as 28098811129 + 44330039209 = 167627^2 + 210547^2 .

It is a super-2 number, since 2×72428850338² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72428850331) 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, 5021183 + ... + 5035586.

Almost surely, 2^72428850338 is an apocalyptic number.

72428850338 is a deficient number, since it is larger than the sum of its proper divisors (44993996182).

72428850338 is a wasteful number, since it uses less digits than its factorization.

72428850338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10057061.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 72428850338 in words is "seventy-two billion, four hundred twenty-eight million, eight hundred fifty thousand, three hundred thirty-eight".