38227905218 has 4 divisors (see below), whose sum is σ = 57341857830. Its totient is φ = 19113952608.

The previous prime is 38227905203. The next prime is 38227905227. The reversal of 38227905218 is 81250972283.

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., 33132372529 + 5095532689 = 182023^2 + 71383^2 .

It is a super-2 number, since 2×38227905218² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9556976303 + ... + 9556976306.

Almost surely, 2^38227905218 is an apocalyptic number.

38227905218 is a deficient number, since it is larger than the sum of its proper divisors (19113952612).

38227905218 is a wasteful number, since it uses less digits than its factorization.

38227905218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19113952611.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 38227905218 in words is "thirty-eight billion, two hundred twenty-seven million, nine hundred five thousand, two hundred eighteen".