4887121920 has 208 divisors, whose sum is σ = 16560236160. Its totient is φ = 1226309632.

The previous prime is 4887121907. The next prime is 4887121931. The reversal of 4887121920 is 291217884.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042141 + ... + 1046819.

It is an arithmetic number, because the mean of its divisors is an integer number (79616520).

Almost surely, 2^4887121920 is an apocalyptic number.

4887121920 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 4887121920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8280118080).

4887121920 is an abundant number, since it is smaller than the sum of its proper divisors (11673114240).

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

4887121920 is a wasteful number, since it uses less digits than its factorization.

4887121920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728 (or 4706 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 4887121920 is about 69907.9531956129. The cubic root of 4887121920 is about 1697.0099597456.

The spelling of 4887121920 in words is "four billion, eight hundred eighty-seven million, one hundred twenty-one thousand, nine hundred twenty".