8616864281 has 4 divisors (see below), whose sum is σ = 8655505152. Its totient is φ = 8578223412.

The previous prime is 8616864271. The next prime is 8616864283. The reversal of 8616864281 is 1824686168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8616864281 - 2¹⁰ = 8616863257 is a prime.

It is a super-2 number, since 2×8616864281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8616864283) 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, 19320101 + ... + 19320546.

It is an arithmetic number, because the mean of its divisors is an integer number (2163876288).

Almost surely, 2^8616864281 is an apocalyptic number.

It is an amenable number.

8616864281 is a deficient number, since it is larger than the sum of its proper divisors (38640871).

8616864281 is a wasteful number, since it uses less digits than its factorization.

8616864281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38640870.

The product of its digits is 884736, while the sum is 50.

The square root of 8616864281 is about 92827.0665323428. The cubic root of 8616864281 is about 2050.1379467751.

The spelling of 8616864281 in words is "eight billion, six hundred sixteen million, eight hundred sixty-four thousand, two hundred eighty-one".