4821678444 has 96 divisors (see below), whose sum is σ = 12547325952. Its totient is φ = 1428840000.

The previous prime is 4821678443. The next prime is 4821678479. The reversal of 4821678444 is 4448761284.

It is a super-2 number, since 2×4821678444² = 46497166034668522272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4821678393 and 4821678402.

It is not an unprimeable number, because it can be changed into a prime (4821678443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188219 + ... + 1192269.

It is an arithmetic number, because the mean of its divisors is an integer number (130701312).

Almost surely, 2^4821678444 is an apocalyptic number.

4821678444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4821678444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6273662976).

4821678444 is an abundant number, since it is smaller than the sum of its proper divisors (7725647508).

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

4821678444 is a wasteful number, since it uses less digits than its factorization.

4821678444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267 (or 4265 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 48.

The square root of 4821678444 is about 69438.3067477887. The cubic root of 4821678444 is about 1689.4010042972.

The spelling of 4821678444 in words is "four billion, eight hundred twenty-one million, six hundred seventy-eight thousand, four hundred forty-four".