898966845840 has 480 divisors, whose sum is σ = 3282277420800. Its totient is φ = 202922496000.

The previous prime is 898966845839. The next prime is 898966845857. The reversal of 898966845840 is 48548669898.

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 95 ways as a sum of consecutive naturals, for example, 642577461 + ... + 642578859.

It is an arithmetic number, because the mean of its divisors is an integer number (6838077960).

Almost surely, 2^898966845840 is an apocalyptic number.

898966845840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 898966845840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641138710400).

898966845840 is an abundant number, since it is smaller than the sum of its proper divisors (2383310574960).

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

898966845840 is a wasteful number, since it uses less digits than its factorization.

898966845840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2058 counting only the distinct ones).

The product of its (nonzero) digits is 955514880, while the sum is 75.

The spelling of 898966845840 in words is "eight hundred ninety-eight billion, nine hundred sixty-six million, eight hundred forty-five thousand, eight hundred forty".