8238745578 has 32 divisors (see below), whose sum is σ = 18836977536. Its totient is φ = 2353232448.

The previous prime is 8238745561. The next prime is 8238745631. The reversal of 8238745578 is 8755478328.

It is a super-4 number, since 4×8238745578⁴ (a number of 41 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124600 + ... + 178892.

It is an arithmetic number, because the mean of its divisors is an integer number (588655548).

Almost surely, 2^8238745578 is an apocalyptic number.

8238745578 is an abundant number, since it is smaller than the sum of its proper divisors (10598231958).

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

8238745578 is a wasteful number, since it uses less digits than its factorization.

8238745578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57918.

The product of its digits is 15052800, while the sum is 57.

The square root of 8238745578 is about 90767.5359255720. The cubic root of 8238745578 is about 2019.7007675239.

The spelling of 8238745578 in words is "eight billion, two hundred thirty-eight million, seven hundred forty-five thousand, five hundred seventy-eight".