8685868619 has 8 divisors (see below), whose sum is σ = 9030540000. Its totient is φ = 8344207872.

The previous prime is 8685868613. The next prime is 8685868663. The reversal of 8685868619 is 9168685868.

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 8685868619 - 2³² = 4390901323 is a prime.

It is a super-2 number, since 2×8685868619² (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 (8685868613) 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, 746774 + ... + 758315.

It is an arithmetic number, because the mean of its divisors is an integer number (1128817500).

Almost surely, 2^8685868619 is an apocalyptic number.

8685868619 is a deficient number, since it is larger than the sum of its proper divisors (344671381).

8685868619 is a wasteful number, since it uses less digits than its factorization.

8685868619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505317.

The product of its digits is 39813120, while the sum is 65.

The square root of 8685868619 is about 93198.0075913643. The cubic root of 8685868619 is about 2055.5959436104.

The spelling of 8685868619 in words is "eight billion, six hundred eighty-five million, eight hundred sixty-eight thousand, six hundred nineteen".