897568586556 has 48 divisors (see below), whose sum is σ = 2237458258560. Its totient is φ = 279212218560.

The previous prime is 897568586549. The next prime is 897568586561. The reversal of 897568586556 is 655685865798.

It is a super-2 number, since 2×897568586556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29363115 + ... + 29393666.

It is an arithmetic number, because the mean of its divisors is an integer number (46613713720).

Almost surely, 2^897568586556 is an apocalyptic number.

It is an amenable number.

897568586556 is an abundant number, since it is smaller than the sum of its proper divisors (1339889672004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897568586556 is a wasteful number, since it uses less digits than its factorization.

897568586556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58756874 (or 58756872 counting only the distinct ones).

The product of its digits is 4354560000, while the sum is 78.

The spelling of 897568586556 in words is "eight hundred ninety-seven billion, five hundred sixty-eight million, five hundred eighty-six thousand, five hundred fifty-six".