4781951620 has 48 divisors (see below), whose sum is σ = 10495231488. Its totient is φ = 1826732160.

The previous prime is 4781951599. The next prime is 4781951623. The reversal of 4781951620 is 261591874.

It is a super-2 number, since 2×4781951620² = 45734122592041248800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4781951623) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 296197 + ... + 311923.

It is an arithmetic number, because the mean of its divisors is an integer number (218650656).

Almost surely, 2^4781951620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4781951620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5247615744).

4781951620 is an abundant number, since it is smaller than the sum of its proper divisors (5713279868).

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

4781951620 is a wasteful number, since it uses less digits than its factorization.

4781951620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16420 (or 16418 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 4781951620 is about 69151.6566685137. The cubic root of 4781951620 is about 1684.7484260773.

The spelling of 4781951620 in words is "four billion, seven hundred eighty-one million, nine hundred fifty-one thousand, six hundred twenty".