4163361881 has 6 divisors (see below), whose sum is σ = 4843094490. Its totient is φ = 3568595856.

The previous prime is 4163361869. The next prime is 4163361899. The reversal of 4163361881 is 1881633614.

It can be written as a sum of positive squares in only one way, i.e., 4158186256 + 5175625 = 64484^2 + 2275^2 .

It is not a de Polignac number, because 4163361881 - 2⁶ = 4163361817 is a prime.

It is a super-2 number, since 2×4163361881² = 34667164304327716322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4163361821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42483236 + ... + 42483333.

It is an arithmetic number, because the mean of its divisors is an integer number (807182415).

Almost surely, 2^4163361881 is an apocalyptic number.

It is an amenable number.

4163361881 is a deficient number, since it is larger than the sum of its proper divisors (679732609).

4163361881 is an equidigital number, since it uses as much as digits as its factorization.

4163361881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84966583 (or 84966576 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 4163361881 is about 64524.1185991719. The cubic root of 4163361881 is about 1608.7234304191.

The spelling of 4163361881 in words is "four billion, one hundred sixty-three million, three hundred sixty-one thousand, eight hundred eighty-one".