897893856678 has 128 divisors (see below), whose sum is σ = 2262442291200. Its totient is φ = 236057915520.

The previous prime is 897893856653. The next prime is 897893856731. The reversal of 897893856678 is 876658398798.

It is a happy number.

897893856678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 897893856678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8428083 + ... + 8533953.

It is an arithmetic number, because the mean of its divisors is an integer number (17675330400).

Almost surely, 2^897893856678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897893856678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131221145600).

897893856678 is an abundant number, since it is smaller than the sum of its proper divisors (1364548434522).

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

897893856678 is a wasteful number, since it uses less digits than its factorization.

897893856678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106227 (or 106213 counting only the distinct ones).

The product of its digits is 8778792960, while the sum is 84.

It can be divided in two parts, 897893 and 856678, that added together give a palindrome (1754571).

The spelling of 897893856678 in words is "eight hundred ninety-seven billion, eight hundred ninety-three million, eight hundred fifty-six thousand, six hundred seventy-eight".