4855463821 has 4 divisors (see below), whose sum is σ = 5228961052. Its totient is φ = 4481966592.

The previous prime is 4855463773. The next prime is 4855463831. The reversal of 4855463821 is 1283645584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1046846025 + 3808617796 = 32355^2 + 61714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4855463821 - 2⁹ = 4855463309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4855463831) 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, 186748596 + ... + 186748621.

It is an arithmetic number, because the mean of its divisors is an integer number (1307240263).

Almost surely, 2^4855463821 is an apocalyptic number.

It is an amenable number.

4855463821 is a deficient number, since it is larger than the sum of its proper divisors (373497231).

4855463821 is a wasteful number, since it uses less digits than its factorization.

4855463821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373497230.

The product of its digits is 921600, while the sum is 46.

The square root of 4855463821 is about 69681.1582926116. The cubic root of 4855463821 is about 1693.3376869665.

The spelling of 4855463821 in words is "four billion, eight hundred fifty-five million, four hundred sixty-three thousand, eight hundred twenty-one".