838566890882 has 18 divisors (see below), whose sum is σ = 1463229474723. Its totient is φ = 359381925252.

The previous prime is 838566890879. The next prime is 838566890893. The reversal of 838566890882 is 288098665838.

It can be written as a sum of positive squares in only one way, i.e., 419283445441 + 419283445441 = 647521^2 + 647521^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=647521.

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, 9019043 + ... + 9111545.

Almost surely, 2^838566890882 is an apocalyptic number.

838566890882 is a deficient number, since it is larger than the sum of its proper divisors (624662583841).

838566890882 is an frugal number, since it uses more digits than its factorization.

838566890882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185022 (or 92512 counting only the distinct ones).

The product of its (nonzero) digits is 318504960, while the sum is 71.

The spelling of 838566890882 in words is "eight hundred thirty-eight billion, five hundred sixty-six million, eight hundred ninety thousand, eight hundred eighty-two".