897102839808 has 1088 divisors, whose sum is σ = 3285624913920. Its totient is φ = 236373147648.

The previous prime is 897102839783. The next prime is 897102839813. The reversal of 897102839808 is 808938201798.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 63 ways as a sum of consecutive naturals, for example, 13389594591 + ... + 13389594657.

It is an arithmetic number, because the mean of its divisors is an integer number (3019875840).

Almost surely, 2^897102839808 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 897102839808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642812456960).

897102839808 is an abundant number, since it is smaller than the sum of its proper divisors (2388522074112).

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

897102839808 is an equidigital number, since it uses as much as digits as its factorization.

897102839808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 897102839808 in words is "eight hundred ninety-seven billion, one hundred two million, eight hundred thirty-nine thousand, eight hundred eight".