897408085688 has 16 divisors (see below), whose sum is σ = 1755798428880. Its totient is φ = 429195171328.

The previous prime is 897408085669. The next prime is 897408085697. The reversal of 897408085688 is 886580804798.

897408085688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2438608745 + ... + 2438609112.

It is an arithmetic number, because the mean of its divisors is an integer number (109737401805).

Almost surely, 2^897408085688 is an apocalyptic number.

It is an amenable number.

897408085688 is a deficient number, since it is larger than the sum of its proper divisors (858390343192).

897408085688 is a wasteful number, since it uses less digits than its factorization.

897408085688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877217886 (or 4877217882 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 71.

The spelling of 897408085688 in words is "eight hundred ninety-seven billion, four hundred eight million, eighty-five thousand, six hundred eighty-eight".