985776936769 has 3 divisors (see below), whose sum is σ = 985777929633. Its totient is φ = 985775943906.

The previous prime is 985776936751. The next prime is 985776936779. The reversal of 985776936769 is 967639677589.

The square root of 985776936769 is 992863.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 985776936769 - 2⁵ = 985776936737 is a prime.

It is a super-3 number, since 3×985776936769³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 985776936692 and 985776936701.

It is not an unprimeable number, because it can be changed into a prime (985776936779) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 496432 + ... + 1489294.

It is an arithmetic number, because the mean of its divisors is an integer number (328592643211).

Almost surely, 2^985776936769 is an apocalyptic number.

985776936769 is the 992863-rd square number.

985776936769 is the 496432-nd centered octagonal number.

It is an amenable number.

985776936769 is a deficient number, since it is larger than the sum of its proper divisors (992864).

985776936769 is an frugal number, since it uses more digits than its factorization.

985776936769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985726 (or 992863 counting only the distinct ones).

The product of its digits is 6481218240, while the sum is 82.

The spelling of 985776936769 in words is "nine hundred eighty-five billion, seven hundred seventy-six million, nine hundred thirty-six thousand, seven hundred sixty-nine".