82218445730 has 8 divisors (see below), whose sum is σ = 147993202332. Its totient is φ = 32887378288.

The previous prime is 82218445691. The next prime is 82218445741. The reversal of 82218445730 is 3754481228.

It can be written as a sum of positive squares in 2 ways, for example, as 81995749801 + 222695929 = 286349^2 + 14923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110922277 + ... + 4110922296.

Almost surely, 2^82218445730 is an apocalyptic number.

82218445730 is a deficient number, since it is larger than the sum of its proper divisors (65774756602).

82218445730 is a wasteful number, since it uses less digits than its factorization.

82218445730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8221844580.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 82218445730 in words is "eighty-two billion, two hundred eighteen million, four hundred forty-five thousand, seven hundred thirty".