897597874868 has 12 divisors (see below), whose sum is σ = 1572444552420. Its totient is φ = 448328002752.

The previous prime is 897597874829. The next prime is 897597874871. The reversal of 897597874868 is 868478795798.

It can be written as a sum of positive squares in 2 ways, for example, as 379330346404 + 518267528464 = 615898^2 + 719908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 897597874868.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 117729383 + ... + 117737006.

It is an arithmetic number, because the mean of its divisors is an integer number (131037046035).

Almost surely, 2^897597874868 is an apocalyptic number.

It is an amenable number.

897597874868 is a deficient number, since it is larger than the sum of its proper divisors (674846677552).

897597874868 is a wasteful number, since it uses less digits than its factorization.

897597874868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235467346 (or 235467344 counting only the distinct ones).

The product of its digits is 13655900160, while the sum is 86.

The spelling of 897597874868 in words is "eight hundred ninety-seven billion, five hundred ninety-seven million, eight hundred seventy-four thousand, eight hundred sixty-eight".