8869919861 has 8 divisors (see below), whose sum is σ = 9726939648. Its totient is φ = 8021344000.

The previous prime is 8869919833. The next prime is 8869919867. The reversal of 8869919861 is 1689199688.

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

It is a cyclic number.

It is not a de Polignac number, because 8869919861 - 2⁶ = 8869919797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8869919867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2108780 + ... + 2112981.

It is an arithmetic number, because the mean of its divisors is an integer number (1215867456).

Almost surely, 2^8869919861 is an apocalyptic number.

It is an amenable number.

8869919861 is a deficient number, since it is larger than the sum of its proper divisors (857019787).

8869919861 is a wasteful number, since it uses less digits than its factorization.

8869919861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221963.

The product of its digits is 13436928, while the sum is 65.

The square root of 8869919861 is about 94180.2519692956. The cubic root of 8869919861 is about 2070.0137583782.

The spelling of 8869919861 in words is "eight billion, eight hundred sixty-nine million, nine hundred nineteen thousand, eight hundred sixty-one".