8686635506 has 8 divisors (see below), whose sum is σ = 13050219504. Its totient is φ = 4336562340.

The previous prime is 8686635493. The next prime is 8686635539. The reversal of 8686635506 is 6055366868.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3376100 + ... + 3378671.

It is an arithmetic number, because the mean of its divisors is an integer number (1631277438).

Almost surely, 2^8686635506 is an apocalyptic number.

8686635506 is a deficient number, since it is larger than the sum of its proper divisors (4363583998).

8686635506 is a wasteful number, since it uses less digits than its factorization.

8686635506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6755416.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The square root of 8686635506 is about 93202.1217891524. The cubic root of 8686635506 is about 2055.6564389385.

The spelling of 8686635506 in words is "eight billion, six hundred eighty-six million, six hundred thirty-five thousand, five hundred six".