8664868642 has 8 divisors (see below), whose sum is σ = 13681371600. Its totient is φ = 4104411444.

The previous prime is 8664868523. The next prime is 8664868649. The reversal of 8664868642 is 2468684668.

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

It is a super-2 number, since 2×8664868642² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8664868649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114011392 + ... + 114011467.

It is an arithmetic number, because the mean of its divisors is an integer number (1710171450).

Almost surely, 2^8664868642 is an apocalyptic number.

8664868642 is a deficient number, since it is larger than the sum of its proper divisors (5016502958).

8664868642 is a wasteful number, since it uses less digits than its factorization.

8664868642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228022880.

The product of its digits is 21233664, while the sum is 58.

The square root of 8664868642 is about 93085.2761826488. The cubic root of 8664868642 is about 2053.9379899407.

The spelling of 8664868642 in words is "eight billion, six hundred sixty-four million, eight hundred sixty-eight thousand, six hundred forty-two".