897489331200 has 2970 divisors, whose sum is σ = 4307478547218. Its totient is φ = 183936614400.

The previous prime is 897489331199. The next prime is 897489331243. The reversal of 897489331200 is 2133984798.

897489331200 is a `hidden beast` number, since 8 + 9 + 7 + 489 + 33 + 120 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 70815596544 + 826673734656 = 266112^2 + 909216^2 .

It is a tau number, because it is divible by the number of its divisors (2970).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 269 ways as a sum of consecutive naturals, for example, 12294374364 + ... + 12294374436.

Almost surely, 2^897489331200 is an apocalyptic number.

897489331200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897489331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2153739273609).

897489331200 is an abundant number, since it is smaller than the sum of its proper divisors (3409989216018).

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

897489331200 is a wasteful number, since it uses less digits than its factorization.

897489331200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 897489331200 in words is "eight hundred ninety-seven billion, four hundred eighty-nine million, three hundred thirty-one thousand, two hundred".