897518219988 has 96 divisors (see below), whose sum is σ = 2382107011200. Its totient is φ = 260731574784.

The previous prime is 897518219977. The next prime is 897518220017. The reversal of 897518219988 is 889912815798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351718 + ... + 1385186.

It is an arithmetic number, because the mean of its divisors is an integer number (24813614700).

Almost surely, 2^897518219988 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 897518219988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1191053505600).

897518219988 is an abundant number, since it is smaller than the sum of its proper divisors (1484588791212).

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

897518219988 is a wasteful number, since it uses less digits than its factorization.

897518219988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033801 (or 1033799 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 75.

The spelling of 897518219988 in words is "eight hundred ninety-seven billion, five hundred eighteen million, two hundred nineteen thousand, nine hundred eighty-eight".