10218749218 has 16 divisors (see below), whose sum is σ = 15623984376. Its totient is φ = 5011528320.

The previous prime is 10218749183. The next prime is 10218749231. The reversal of 10218749218 is 81294781201.

It can be written as a sum of positive squares in 4 ways, for example, as 3579269929 + 6639479289 = 59827^2 + 81483^2 .

It is a super-2 number, since 2×10218749218² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166921 + ... + 219772.

Almost surely, 2^10218749218 is an apocalyptic number.

10218749218 is a deficient number, since it is larger than the sum of its proper divisors (5405235158).

10218749218 is a wasteful number, since it uses less digits than its factorization.

10218749218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386949.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 10218749218 in words is "ten billion, two hundred eighteen million, seven hundred forty-nine thousand, two hundred eighteen".