8128443492 has 72 divisors (see below), whose sum is σ = 22490253240. Its totient is φ = 2460049920.

The previous prime is 8128443469. The next prime is 8128443541. The reversal of 8128443492 is 2943448218.

8128443492 is a `hidden beast` number, since 8 + 128 + 4 + 434 + 92 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 982446336 + 7145997156 = 31344^2 + 84534^2 .

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 23 ways as a sum of consecutive naturals, for example, 113817 + ... + 170912.

Almost surely, 2^8128443492 is an apocalyptic number.

It is an amenable number.

8128443492 is an abundant number, since it is smaller than the sum of its proper divisors (14361809748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8128443492 is a wasteful number, since it uses less digits than its factorization.

8128443492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284813 (or 284808 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 8128443492 is about 90157.8809200837. The cubic root of 8128443492 is about 2010.6468460944.

The spelling of 8128443492 in words is "eight billion, one hundred twenty-eight million, four hundred forty-three thousand, four hundred ninety-two".