4879221840 has 160 divisors (see below), whose sum is σ = 17537091840. Its totient is φ = 1244542464.

The previous prime is 4879221821. The next prime is 4879221953. The reversal of 4879221840 is 481229784.

4879221840 is a `hidden beast` number, since 487 + 92 + 2 + 1 + 84 + 0 = 666.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574 + ... + 98786.

It is an arithmetic number, because the mean of its divisors is an integer number (109606824).

Almost surely, 2^4879221840 is an apocalyptic number.

4879221840 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 4879221840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8768545920).

4879221840 is an abundant number, since it is smaller than the sum of its proper divisors (12657870000).

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

4879221840 is a wasteful number, since it uses less digits than its factorization.

4879221840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98258 (or 98246 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 4879221840 is about 69851.4269002431. The cubic root of 4879221840 is about 1696.0950555629.

The spelling of 4879221840 in words is "four billion, eight hundred seventy-nine million, two hundred twenty-one thousand, eight hundred forty".