4931815220 has 12 divisors (see below), whose sum is σ = 10356812004. Its totient is φ = 1972726080.

The previous prime is 4931815193. The next prime is 4931815223. The reversal of 4931815220 is 225181394.

It can be written as a sum of positive squares in 2 ways, for example, as 3748867984 + 1182947236 = 61228^2 + 34394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4931815223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123295361 + ... + 123295400.

It is an arithmetic number, because the mean of its divisors is an integer number (863067667).

Almost surely, 2^4931815220 is an apocalyptic number.

It is an amenable number.

4931815220 is an abundant number, since it is smaller than the sum of its proper divisors (5424996784).

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

4931815220 is a wasteful number, since it uses less digits than its factorization.

4931815220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246590770 (or 246590768 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 4931815220 is about 70226.8838835955. The cubic root of 4931815220 is about 1702.1673877984.

The spelling of 4931815220 in words is "four billion, nine hundred thirty-one million, eight hundred fifteen thousand, two hundred twenty".