8163867044 has 24 divisors (see below), whose sum is σ = 14370205248. Its totient is φ = 4058146400.

The previous prime is 8163867029. The next prime is 8163867071. The reversal of 8163867044 is 4407683618.

It is a happy number.

It is a super-3 number, since 3×8163867044³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 8163867044.

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, 668594 + ... + 680694.

It is an arithmetic number, because the mean of its divisors is an integer number (598758552).

Almost surely, 2^8163867044 is an apocalyptic number.

It is an amenable number.

8163867044 is a deficient number, since it is larger than the sum of its proper divisors (6206338204).

8163867044 is a wasteful number, since it uses less digits than its factorization.

8163867044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13075 (or 13073 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 8163867044 is about 90354.1202380943. The cubic root of 8163867044 is about 2013.5633962083.

The spelling of 8163867044 in words is "eight billion, one hundred sixty-three million, eight hundred sixty-seven thousand, forty-four".