1485521867808 has 288 divisors, whose sum is σ = 4814859853440. Its totient is φ = 430049157120.

The previous prime is 1485521867761. The next prime is 1485521867849. The reversal of 1485521867808 is 8087681255841.

1485521867808 is a `hidden beast` number, since 1 + 4 + 8 + 552 + 1 + 8 + 6 + 78 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60391960 + ... + 60416552.

It is an arithmetic number, because the mean of its divisors is an integer number (16718263380).

Almost surely, 2^{1485521867808} is an apocalyptic number.

1485521867808 is a gapful number since it is divisible by the number (18) 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 1485521867808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2407429926720).

1485521867808 is an abundant number, since it is smaller than the sum of its proper divisors (3329337985632).

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

1485521867808 is a wasteful number, since it uses less digits than its factorization.

1485521867808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25472 (or 25461 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 63.

The spelling of 1485521867808 in words is "one trillion, four hundred eighty-five billion, five hundred twenty-one million, eight hundred sixty-seven thousand, eight hundred eight".