8358219085 has 16 divisors (see below), whose sum is σ = 10229189040. Its totient is φ = 6554442240.

The previous prime is 8358219083. The next prime is 8358219109. The reversal of 8358219085 is 5809128538.

It can be written as a sum of positive squares in 8 ways, for example, as 117029124 + 8241189961 = 10818^2 + 90781^2 .

It is not a de Polignac number, because 8358219085 - 2¹ = 8358219083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8358219083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42601 + ... + 136129.

It is an arithmetic number, because the mean of its divisors is an integer number (639324315).

Almost surely, 2^8358219085 is an apocalyptic number.

It is an amenable number.

8358219085 is a deficient number, since it is larger than the sum of its proper divisors (1870969955).

8358219085 is a wasteful number, since it uses less digits than its factorization.

8358219085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93888.

The product of its (nonzero) digits is 691200, while the sum is 49.

The square root of 8358219085 is about 91423.2961831939. The cubic root of 8358219085 is about 2029.4167951839.

The spelling of 8358219085 in words is "eight billion, three hundred fifty-eight million, two hundred nineteen thousand, eighty-five".