8158209082 has 4 divisors (see below), whose sum is σ = 12237313626. Its totient is φ = 4079104540.

The previous prime is 8158209079. The next prime is 8158209107. The reversal of 8158209082 is 2809028518.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2809028518 = 2 ⋅1404514259.

It can be written as a sum of positive squares in only one way, i.e., 8157883041 + 326041 = 90321^2 + 571^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2039552269 + ... + 2039552272.

Almost surely, 2^8158209082 is an apocalyptic number.

8158209082 is a deficient number, since it is larger than the sum of its proper divisors (4079104544).

8158209082 is a wasteful number, since it uses less digits than its factorization.

8158209082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079104543.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 8158209082 is about 90322.8048833737. The cubic root of 8158209082 is about 2013.0981224998.

The spelling of 8158209082 in words is "eight billion, one hundred fifty-eight million, two hundred nine thousand, eighty-two".