808140656338 has 8 divisors (see below), whose sum is σ = 1213940246220. Its totient is φ = 403493907600.

The previous prime is 808140656333. The next prime is 808140656353. The reversal of 808140656338 is 833656041808.

It can be written as a sum of positive squares in 2 ways, for example, as 680036077449 + 128104578889 = 824643^2 + 357917^2 .

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

It is not an unprimeable number, because it can be changed into a prime (808140656333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288208533 + ... + 288211336.

Almost surely, 2^808140656338 is an apocalyptic number.

808140656338 is a deficient number, since it is larger than the sum of its proper divisors (405799589882).

808140656338 is a wasteful number, since it uses less digits than its factorization.

808140656338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576420572.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 808140656338 in words is "eight hundred eight billion, one hundred forty million, six hundred fifty-six thousand, three hundred thirty-eight".