8227808757218 has 4 divisors (see below), whose sum is σ = 12341713135830. Its totient is φ = 4113904378608.

The previous prime is 8227808757187. The next prime is 8227808757239. The reversal of 8227808757218 is 8127578087228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6396109076809 + 1831699680409 = 2529053^2 + 1353403^2 .

It is a super-3 number, since 3×8227808757218³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2056952189303 + ... + 2056952189306.

Almost surely, 2^{8227808757218} is an apocalyptic number.

8227808757218 is a deficient number, since it is larger than the sum of its proper divisors (4113904378612).

8227808757218 is a wasteful number, since it uses less digits than its factorization.

8227808757218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113904378611.

The product of its (nonzero) digits is 56197120, while the sum is 65.

The spelling of 8227808757218 in words is "eight trillion, two hundred twenty-seven billion, eight hundred eight million, seven hundred fifty-seven thousand, two hundred eighteen".