4454481861 has 6 divisors (see below), whose sum is σ = 6434251590. Its totient is φ = 2969654568.

The previous prime is 4454481743. The next prime is 4454481877. The reversal of 4454481861 is 1681844544.

4454481861 is a `hidden beast` number, since 44 + 54 + 481 + 86 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3847844961 + 606636900 = 62031^2 + 24630^2 .

It is not a de Polignac number, because 4454481861 - 2¹⁰ = 4454480837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454488861) 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 5 ways as a sum of consecutive naturals, for example, 247471206 + ... + 247471223.

It is an arithmetic number, because the mean of its divisors is an integer number (1072375265).

Almost surely, 2^4454481861 is an apocalyptic number.

It is an amenable number.

4454481861 is a deficient number, since it is larger than the sum of its proper divisors (1979769729).

4454481861 is a wasteful number, since it uses less digits than its factorization.

4454481861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494942435 (or 494942432 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 4454481861 is about 66741.9048349686. The cubic root of 4454481861 is about 1645.3781721862.

The spelling of 4454481861 in words is "four billion, four hundred fifty-four million, four hundred eighty-one thousand, eight hundred sixty-one".