685836133356 has 24 divisors (see below), whose sum is σ = 1745764703424. Its totient is φ = 207829131280.

The previous prime is 685836133351. The next prime is 685836133387. The reversal of 685836133356 is 653331638586.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 685836133296 and 685836133305.

It is not an unprimeable number, because it can be changed into a prime (685836133351) 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 7 ways as a sum of consecutive naturals, for example, 2597864010 + ... + 2597864273.

It is an arithmetic number, because the mean of its divisors is an integer number (72740195976).

Almost surely, 2^685836133356 is an apocalyptic number.

685836133356 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

685836133356 is an abundant number, since it is smaller than the sum of its proper divisors (1059928570068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685836133356 is a wasteful number, since it uses less digits than its factorization.

685836133356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195728301 (or 5195728299 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 57.

The spelling of 685836133356 in words is "six hundred eighty-five billion, eight hundred thirty-six million, one hundred thirty-three thousand, three hundred fifty-six".