4855121008920 has 576 divisors, whose sum is σ = 20554971091200. Its totient is φ = 970460974080.

The previous prime is 4855121008891. The next prime is 4855121008943. The reversal of 4855121008920 is 298001215584.

4855121008920 is a `hidden beast` number, since 4 + 8 + 5 + 512 + 100 + 8 + 9 + 20 = 666.

It is a super-3 number, since 3×4855121008920³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7791715 + ... + 8391725.

It is an arithmetic number, because the mean of its divisors is an integer number (35685713700).

Almost surely, 2^{4855121008920} is an apocalyptic number.

4855121008920 is a gapful number since it is divisible by the number (40) 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 4855121008920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10277485545600).

4855121008920 is an abundant number, since it is smaller than the sum of its proper divisors (15699850082280).

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

4855121008920 is a wasteful number, since it uses less digits than its factorization.

4855121008920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600080 (or 600060 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 4855121008920 in words is "four trillion, eight hundred fifty-five billion, one hundred twenty-one million, eight thousand, nine hundred twenty".