897689713536 has 896 divisors, whose sum is σ = 3378186339840. Its totient is φ = 230712053760.

The previous prime is 897689713519. The next prime is 897689713553. The reversal of 897689713536 is 635317986798.

897689713536 is a `hidden beast` number, since 8 + 9 + 7 + 6 + 89 + 7 + 1 + 3 + 536 = 666.

It is an interprime number because it is at equal distance from previous prime (897689713519) and next prime (897689713553).

It is a tau number, because it is divible by the number of its divisors (896).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 740056866 + ... + 740058078.

Almost surely, 2^897689713536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897689713536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689093169920).

897689713536 is an abundant number, since it is smaller than the sum of its proper divisors (2480496626304).

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

897689713536 is a wasteful number, since it uses less digits than its factorization.

897689713536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1339 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 72.

The spelling of 897689713536 in words is "eight hundred ninety-seven billion, six hundred eighty-nine million, seven hundred thirteen thousand, five hundred thirty-six".