8158063684 has 9 divisors (see below), whose sum is σ = 14276927581. Its totient is φ = 4078941520.

The previous prime is 8158063679. The next prime is 8158063709. The reversal of 8158063684 is 4863608518.

The square root of 8158063684 is 90322.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6049417284 + 2108646400 = 77778^2 + 45920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 158064 + ... + 203224.

Almost surely, 2^8158063684 is an apocalyptic number.

8158063684 is the 90322-nd square number.

It is an amenable number.

8158063684 is a deficient number, since it is larger than the sum of its proper divisors (6118863897).

8158063684 is an frugal number, since it uses more digits than its factorization.

8158063684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90326 (or 45163 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The cubic root of 8158063684 is about 2013.0861630866.

Multiplying 8158063684 by its sum of digits (49), we get a square (399745120516 = 632254²).

The spelling of 8158063684 in words is "eight billion, one hundred fifty-eight million, sixty-three thousand, six hundred eighty-four".