897810023880 has 768 divisors, whose sum is σ = 3679603200000. Its totient is φ = 184431237120.

The previous prime is 897810023839. The next prime is 897810023881. The reversal of 897810023880 is 88320018798.

It is not an unprimeable number, because it can be changed into a prime (897810023881) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 1498847821 + ... + 1498848419.

It is an arithmetic number, because the mean of its divisors is an integer number (4791150000).

Almost surely, 2^897810023880 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 897810023880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839801600000).

897810023880 is an abundant number, since it is smaller than the sum of its proper divisors (2781793176120).

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

897810023880 is a wasteful number, since it uses less digits than its factorization.

897810023880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 897810023880 in words is "eight hundred ninety-seven billion, eight hundred ten million, twenty-three thousand, eight hundred eighty".