4127779220 has 12 divisors (see below), whose sum is σ = 8668336404. Its totient is φ = 1651111680.

The previous prime is 4127779217. The next prime is 4127779223. The reversal of 4127779220 is 229777214.

It is an interprime number because it is at equal distance from previous prime (4127779217) and next prime (4127779223).

It can be written as a sum of positive squares in 2 ways, for example, as 576096004 + 3551683216 = 24002^2 + 59596^2 .

It is a super-2 number, since 2×4127779220² = 34077122578127616800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4127779223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103194461 + ... + 103194500.

It is an arithmetic number, because the mean of its divisors is an integer number (722361367).

Almost surely, 2^4127779220 is an apocalyptic number.

It is an amenable number.

4127779220 is an abundant number, since it is smaller than the sum of its proper divisors (4540557184).

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

4127779220 is a wasteful number, since it uses less digits than its factorization.

4127779220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206388970 (or 206388968 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 4127779220 is about 64247.7954485599. The cubic root of 4127779220 is about 1604.1272636756.

The spelling of 4127779220 in words is "four billion, one hundred twenty-seven million, seven hundred seventy-nine thousand, two hundred twenty".