897766120512 has 672 divisors, whose sum is σ = 2880455585280. Its totient is φ = 276397608960.

The previous prime is 897766120483. The next prime is 897766120529. The reversal of 897766120512 is 215021667798.

897766120512 is a `hidden beast` number, since 8 + 9 + 7 + 7 + 6 + 612 + 0 + 5 + 12 = 666.

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 95 ways as a sum of consecutive naturals, for example, 2712284187 + ... + 2712284517.

It is an arithmetic number, because the mean of its divisors is an integer number (4286392240).

Almost surely, 2^897766120512 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 897766120512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440227792640).

897766120512 is an abundant number, since it is smaller than the sum of its proper divisors (1982689464768).

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

897766120512 is a wasteful number, since it uses less digits than its factorization.

897766120512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 897766120512 in words is "eight hundred ninety-seven billion, seven hundred sixty-six million, one hundred twenty thousand, five hundred twelve".