5621444334 has 64 divisors (see below), whose sum is σ = 14067394560. Its totient is φ = 1648512000.

The previous prime is 5621444273. The next prime is 5621444357. The reversal of 5621444334 is 4334441265.

5621444334 is a `hidden beast` number, since 5 + 6 + 214 + 4 + 433 + 4 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134227 + ... + 171054.

It is an arithmetic number, because the mean of its divisors is an integer number (219803040).

Almost surely, 2^5621444334 is an apocalyptic number.

5621444334 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

5621444334 is an abundant number, since it is smaller than the sum of its proper divisors (8445950226).

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

5621444334 is a wasteful number, since it uses less digits than its factorization.

5621444334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305334 (or 305328 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 5621444334 is about 74976.2918128124. The cubic root of 5621444334 is about 1778.0718436420.

Adding to 5621444334 its reverse (4334441265), we get a palindrome (9955885599).

The spelling of 5621444334 in words is "five billion, six hundred twenty-one million, four hundred forty-four thousand, three hundred thirty-four".