485999996769 has 81 divisors (see below), whose sum is σ = 828110872953. Its totient is φ = 273857721984.

The previous prime is 485999996749. The next prime is 485999996851. The reversal of 485999996769 is 967699999584.

The square root of 485999996769 is 697137.

It is a perfect power (a square), and thus also a powerful number.

485999996769 is a `hidden beast` number, since 4 + 8 + 599 + 9 + 9 + 9 + 6 + 7 + 6 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 39257478225 + 446742518544 = 198135^2 + 668388^2 .

It is not a de Polignac number, because 485999996769 - 2¹³ = 485999988577 is a prime.

It is a super-2 number, since 2×485999996769² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (485999996749) 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 80 ways as a sum of consecutive naturals, for example, 1302948867 + ... + 1302949239.

Almost surely, 2^485999996769 is an apocalyptic number.

485999996769 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

485999996769 is the 697137-th square number.

485999996769 is the 348569-th centered octagonal number.

It is an amenable number.

485999996769 is a deficient number, since it is larger than the sum of its proper divisors (342110876184).

485999996769 is an frugal number, since it uses more digits than its factorization.

485999996769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 472 counting only the distinct ones).

The product of its digits is 21427701120, while the sum is 90.

The spelling of 485999996769 in words is "four hundred eighty-five billion, nine hundred ninety-nine million, nine hundred ninety-six thousand, seven hundred sixty-nine".