18868966316 has 6 divisors (see below), whose sum is σ = 33020691060. Its totient is φ = 9434483156.

The previous prime is 18868966309. The next prime is 18868966327. The reversal of 18868966316 is 61366986881.

It is a super-2 number, since 2×18868966316² (a number of 21 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, 2358620786 + ... + 2358620793.

It is an arithmetic number, because the mean of its divisors is an integer number (5503448510).

Almost surely, 2^18868966316 is an apocalyptic number.

It is an amenable number.

18868966316 is a deficient number, since it is larger than the sum of its proper divisors (14151724744).

18868966316 is a wasteful number, since it uses less digits than its factorization.

18868966316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717241583 (or 4717241581 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 62.

The spelling of 18868966316 in words is "eighteen billion, eight hundred sixty-eight million, nine hundred sixty-six thousand, three hundred sixteen".