8669378817 has 24 divisors (see below), whose sum is σ = 13853256768. Its totient is φ = 5180162400.

The previous prime is 8669378807. The next prime is 8669378819. The reversal of 8669378817 is 7188739668.

It is not a de Polignac number, because 8669378817 - 2¹¹ = 8669376769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8669378819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 609658 + ... + 623715.

It is an arithmetic number, because the mean of its divisors is an integer number (577219032).

Almost surely, 2^8669378817 is an apocalyptic number.

It is an amenable number.

8669378817 is a deficient number, since it is larger than the sum of its proper divisors (5183877951).

8669378817 is a wasteful number, since it uses less digits than its factorization.

8669378817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233461 (or 1233458 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 8669378817 is about 93109.4990696438. The cubic root of 8669378817 is about 2054.2942951291.

The spelling of 8669378817 in words is "eight billion, six hundred sixty-nine million, three hundred seventy-eight thousand, eight hundred seventeen".