969856365897 has 6 divisors (see below), whose sum is σ = 1400903639642. Its totient is φ = 646570910592.

The previous prime is 969856365859. The next prime is 969856366021. The reversal of 969856365897 is 798563658969.

969856365897 is a `hidden beast` number, since 96 + 9 + 85 + 6 + 365 + 8 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 790287218361 + 179569147536 = 888981^2 + 423756^2 .

It is not a de Polignac number, because 969856365897 - 2⁸ = 969856365641 is a prime.

It is a super-2 number, since 2×969856365897² (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 (969856365847) 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 5 ways as a sum of consecutive naturals, for example, 53880909208 + ... + 53880909225.

Almost surely, 2^969856365897 is an apocalyptic number.

It is an amenable number.

969856365897 is a deficient number, since it is larger than the sum of its proper divisors (431047273745).

969856365897 is a wasteful number, since it uses less digits than its factorization.

969856365897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107761818439 (or 107761818436 counting only the distinct ones).

The product of its digits is 5290790400, while the sum is 81.

The spelling of 969856365897 in words is "nine hundred sixty-nine billion, eight hundred fifty-six million, three hundred sixty-five thousand, eight hundred ninety-seven".