8125568438 has 32 divisors (see below), whose sum is σ = 13923143136. Its totient is φ = 3523281408.

The previous prime is 8125568411. The next prime is 8125568449. The reversal of 8125568438 is 8348655218.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 232520 + ... + 265172.

It is an arithmetic number, because the mean of its divisors is an integer number (435098223).

Almost surely, 2^8125568438 is an apocalyptic number.

8125568438 is a deficient number, since it is larger than the sum of its proper divisors (5797574698).

8125568438 is a wasteful number, since it uses less digits than its factorization.

8125568438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33248.

The product of its digits is 1843200, while the sum is 50.

The square root of 8125568438 is about 90141.9349581536. The cubic root of 8125568438 is about 2010.4097609358.

The spelling of 8125568438 in words is "eight billion, one hundred twenty-five million, five hundred sixty-eight thousand, four hundred thirty-eight".