869723582697 has 6 divisors (see below), whose sum is σ = 1256267397242. Its totient is φ = 579815721792.

The previous prime is 869723582639. The next prime is 869723582729. The reversal of 869723582697 is 796285327968.

869723582697 is a `hidden beast` number, since 8 + 6 + 9 + 7 + 2 + 358 + 269 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 526152932496 + 343570650201 = 725364^2 + 586149^2 .

It is not a de Polignac number, because 869723582697 - 2⁷ = 869723582569 is a prime.

It is a super-2 number, since 2×869723582697² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869723582617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48317976808 + ... + 48317976825.

Almost surely, 2^869723582697 is an apocalyptic number.

It is an amenable number.

869723582697 is a deficient number, since it is larger than the sum of its proper divisors (386543814545).

869723582697 is a wasteful number, since it uses less digits than its factorization.

869723582697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96635953639 (or 96635953636 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 72.

The spelling of 869723582697 in words is "eight hundred sixty-nine billion, seven hundred twenty-three million, five hundred eighty-two thousand, six hundred ninety-seven".