8225768578 has 8 divisors (see below), whose sum is σ = 12339051660. Its totient is φ = 4112751360.

The previous prime is 8225768569. The next prime is 8225768609. The reversal of 8225768578 is 8758675228.

It can be written as a sum of positive squares in 2 ways, for example, as 8207816409 + 17952169 = 90597^2 + 4237^2 .

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

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, 56058 + ... + 139978.

Almost surely, 2^8225768578 is an apocalyptic number.

8225768578 is a deficient number, since it is larger than the sum of its proper divisors (4113283082).

8225768578 is a wasteful number, since it uses less digits than its factorization.

8225768578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132932.

The product of its digits is 15052800, while the sum is 58.

The square root of 8225768578 is about 90696.0229447797. The cubic root of 8225768578 is about 2018.6397876385.

The spelling of 8225768578 in words is "eight billion, two hundred twenty-five million, seven hundred sixty-eight thousand, five hundred seventy-eight".