869767007769 has 81 divisors (see below), whose sum is σ = 1407665801269. Its totient is φ = 517115256240.

The previous prime is 869767007731. The next prime is 869767007773. The reversal of 869767007769 is 967700767968.

The square root of 869767007769 is 932613.

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

It is not a de Polignac number, because 869767007769 - 2¹⁷ = 869766876697 is a prime.

It is a super-2 number, since 2×869767007769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 869767007697 and 869767007706.

It is not an unprimeable number, because it can be changed into a prime (869767007789) 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 80 ways as a sum of consecutive naturals, for example, 1815797272 + ... + 1815797750.

Almost surely, 2^869767007769 is an apocalyptic number.

869767007769 is the 932613-rd square number.

869767007769 is the 466307-th centered octagonal number.

It is an amenable number.

869767007769 is a deficient number, since it is larger than the sum of its proper divisors (537898793500).

869767007769 is an equidigital number, since it uses as much as digits as its factorization.

869767007769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 336063168, while the sum is 72.

The spelling of 869767007769 in words is "eight hundred sixty-nine billion, seven hundred sixty-seven million, seven thousand, seven hundred sixty-nine".