8272138450 has 12 divisors (see below), whose sum is σ = 15386177610. Its totient is φ = 3308855360.

The previous prime is 8272138429. The next prime is 8272138493. The reversal of 8272138450 is 548312728.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4242047161 + 4030091289 = 65131^2 + 63483^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82721335 + ... + 82721434.

Almost surely, 2^8272138450 is an apocalyptic number.

8272138450 is a deficient number, since it is larger than the sum of its proper divisors (7114039160).

8272138450 is a wasteful number, since it uses less digits than its factorization.

8272138450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165442781 (or 165442776 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 8272138450 is about 90951.2971320366. The cubic root of 8272138450 is about 2022.4258059216.

The spelling of 8272138450 in words is "eight billion, two hundred seventy-two million, one hundred thirty-eight thousand, four hundred fifty".