897961512756 has 192 divisors, whose sum is σ = 2676434503680. Its totient is φ = 227555427840.

The previous prime is 897961512739. The next prime is 897961512761. The reversal of 897961512756 is 657215169798.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8714770 + ... + 8817206.

It is an arithmetic number, because the mean of its divisors is an integer number (13939763040).

Almost surely, 2^897961512756 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 897961512756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338217251840).

897961512756 is an abundant number, since it is smaller than the sum of its proper divisors (1778472990924).

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

897961512756 is a wasteful number, since it uses less digits than its factorization.

897961512756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102694 (or 102692 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 66.

The spelling of 897961512756 in words is "eight hundred ninety-seven billion, nine hundred sixty-one million, five hundred twelve thousand, seven hundred fifty-six".