8545545087840 has 120 divisors (see below), whose sum is σ = 30158652918240. Its totient is φ = 2278812019968.

The previous prime is 8545545087791. The next prime is 8545545087943. The reversal of 8545545087840 is 487805455458.

8545545087840 is a `hidden beast` number, since 8 + 5 + 4 + 5 + 54 + 508 + 78 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 329676280 + ... + 329702199.

It is an arithmetic number, because the mean of its divisors is an integer number (251322107652).

Almost surely, 2^{8545545087840} is an apocalyptic number.

8545545087840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8545545087840 is an abundant number, since it is smaller than the sum of its proper divisors (21613107830400).

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

8545545087840 is a wasteful number, since it uses less digits than its factorization.

8545545087840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659378506 (or 659378489 counting only the distinct ones).

The product of its (nonzero) digits is 143360000, while the sum is 63.

The spelling of 8545545087840 in words is "eight trillion, five hundred forty-five billion, five hundred forty-five million, eighty-seven thousand, eight hundred forty".