8581208212 has 6 divisors (see below), whose sum is σ = 15017114378. Its totient is φ = 4290604104.

The previous prime is 8581208197. The next prime is 8581208249. The reversal of 8581208212 is 2128021858.

It can be written as a sum of positive squares in only one way, i.e., 8569945476 + 11262736 = 92574^2 + 3356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072651023 + ... + 1072651030.

Almost surely, 2^8581208212 is an apocalyptic number.

It is an amenable number.

8581208212 is a deficient number, since it is larger than the sum of its proper divisors (6435906166).

8581208212 is a wasteful number, since it uses less digits than its factorization.

8581208212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145302057 (or 2145302055 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The square root of 8581208212 is about 92634.8110161617. The cubic root of 8581208212 is about 2047.3062546518.

The spelling of 8581208212 in words is "eight billion, five hundred eighty-one million, two hundred eight thousand, two hundred twelve".