897897798798 has 256 divisors, whose sum is σ = 2500175462400. Its totient is φ = 207365598720.

The previous prime is 897897798773. The next prime is 897897798799.

897897798798 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897897798799) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76456515 + ... + 76468257.

It is an arithmetic number, because the mean of its divisors is an integer number (9766310400).

Almost surely, 2^897897798798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897897798798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250087731200).

897897798798 is an abundant number, since it is smaller than the sum of its proper divisors (1602277663602).

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

897897798798 is a wasteful number, since it uses less digits than its factorization.

897897798798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247.

The product of its digits is 64524128256, while the sum is 96.

The spelling of 897897798798 in words is "eight hundred ninety-seven billion, eight hundred ninety-seven million, seven hundred ninety-eight thousand, seven hundred ninety-eight".