8669863869 has 8 divisors (see below), whose sum is σ = 12062419392. Its totient is φ = 5528608800.

The previous prime is 8669863849. The next prime is 8669863897. The reversal of 8669863869 is 9683689668.

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

It is not a de Polignac number, because 8669863869 - 2⁹ = 8669863357 is a prime.

It is a super-2 number, since 2×8669863869² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 125650201 = 8669863869 / (8 + 6 + 6 + 9 + 8 + 6 + 3 + 8 + 6 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8669863849) 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, 62825032 + ... + 62825169.

It is an arithmetic number, because the mean of its divisors is an integer number (1507802424).

Almost surely, 2^8669863869 is an apocalyptic number.

It is an amenable number.

8669863869 is a deficient number, since it is larger than the sum of its proper divisors (3392555523).

8669863869 is a wasteful number, since it uses less digits than its factorization.

8669863869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125650227.

The product of its digits is 161243136, while the sum is 69.

The square root of 8669863869 is about 93112.1037728178. The cubic root of 8669863869 is about 2054.3326070233.

The spelling of 8669863869 in words is "eight billion, six hundred sixty-nine million, eight hundred sixty-three thousand, eight hundred sixty-nine".