869297632369 has 6 divisors (see below), whose sum is σ = 876196408434. Its totient is φ = 862452753120.

The previous prime is 869297632361. The next prime is 869297632381. The reversal of 869297632369 is 963236792968.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 855046047969 + 14251584400 = 924687^2 + 119380^2 .

It is not a de Polignac number, because 869297632369 - 2³ = 869297632361 is a prime.

It is a super-2 number, since 2×869297632369² (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 = 869297632298 and 869297632307.

It is not an unprimeable number, because it can be changed into a prime (869297632361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26932152 + ... + 26964409.

It is an arithmetic number, because the mean of its divisors is an integer number (146032734739).

Almost surely, 2^869297632369 is an apocalyptic number.

It is an amenable number.

869297632369 is a deficient number, since it is larger than the sum of its proper divisors (6898776065).

869297632369 is an equidigital number, since it uses as much as digits as its factorization.

869297632369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53896815 (or 53896688 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 70.

The spelling of 869297632369 in words is "eight hundred sixty-nine billion, two hundred ninety-seven million, six hundred thirty-two thousand, three hundred sixty-nine".