808788639065 has 8 divisors (see below), whose sum is σ = 1058777854848. Its totient is φ = 588209919280.

The previous prime is 808788639041. The next prime is 808788639091. The reversal of 808788639065 is 560936887808.

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

It is a de Polignac number, because none of the positive numbers 2^k-808788639065 is a prime.

It is a super-2 number, since 2×808788639065² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 808788638986 and 808788639004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7352623937 + ... + 7352624046.

It is an arithmetic number, because the mean of its divisors is an integer number (132347231856).

Almost surely, 2^808788639065 is an apocalyptic number.

It is an amenable number.

808788639065 is a deficient number, since it is larger than the sum of its proper divisors (249989215783).

808788639065 is a wasteful number, since it uses less digits than its factorization.

808788639065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14705247999.

The product of its (nonzero) digits is 139345920, while the sum is 68.

The spelling of 808788639065 in words is "eight hundred eight billion, seven hundred eighty-eight million, six hundred thirty-nine thousand, sixty-five".