485890171008 has 384 divisors, whose sum is σ = 1468331746560. Its totient is φ = 142145372160.

The previous prime is 485890171001. The next prime is 485890171051. The reversal of 485890171008 is 800171098584.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (485890171001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235524985 + ... + 235527047.

It is an arithmetic number, because the mean of its divisors is an integer number (3823780590).

Almost surely, 2^485890171008 is an apocalyptic number.

485890171008 is a gapful number since it is divisible by the number (48) 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 485890171008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734165873280).

485890171008 is an abundant number, since it is smaller than the sum of its proper divisors (982441575552).

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

485890171008 is a wasteful number, since it uses less digits than its factorization.

485890171008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 485890171008 in words is "four hundred eighty-five billion, eight hundred ninety million, one hundred seventy-one thousand, eight".