838132265285 has 16 divisors (see below), whose sum is σ = 1168920547200. Its totient is φ = 564978261696.

The previous prime is 838132265281. The next prime is 838132265363. The reversal of 838132265285 is 582562231838.

It is a cyclic number.

It is not a de Polignac number, because 838132265285 - 2² = 838132265281 is a prime.

It is a super-2 number, since 2×838132265285² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838132265281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202935530 + ... + 202939659.

It is an arithmetic number, because the mean of its divisors is an integer number (73057534200).

Almost surely, 2^838132265285 is an apocalyptic number.

It is an amenable number.

838132265285 is a deficient number, since it is larger than the sum of its proper divisors (330788281915).

838132265285 is a wasteful number, since it uses less digits than its factorization.

838132265285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405875260.

The product of its digits is 5529600, while the sum is 53.

The spelling of 838132265285 in words is "eight hundred thirty-eight billion, one hundred thirty-two million, two hundred sixty-five thousand, two hundred eighty-five".