865235922338 has 18 divisors (see below), whose sum is σ = 1307668792563. Its totient is φ = 429370713600.

The previous prime is 865235922283. The next prime is 865235922379. The reversal of 865235922338 is 833229532568.

It can be written as a sum of positive squares in 5 ways, for example, as 573498746209 + 291737176129 = 757297^2 + 540127^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=657737.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 180217538 + ... + 180222338.

Almost surely, 2^865235922338 is an apocalyptic number.

865235922338 is a deficient number, since it is larger than the sum of its proper divisors (442432870225).

865235922338 is an frugal number, since it uses more digits than its factorization.

865235922338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9878 (or 4940 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 56.

The spelling of 865235922338 in words is "eight hundred sixty-five billion, two hundred thirty-five million, nine hundred twenty-two thousand, three hundred thirty-eight".