5278621824 has 512 divisors, whose sum is σ = 18719040000. Its totient is φ = 1463132160.

The previous prime is 5278621801. The next prime is 5278621849. The reversal of 5278621824 is 4281268725.

5278621824 is a `hidden beast` number, since 527 + 86 + 21 + 8 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 5278621824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72309852 + ... + 72309924.

It is an arithmetic number, because the mean of its divisors is an integer number (36560625).

Almost surely, 2^5278621824 is an apocalyptic number.

5278621824 is a gapful number since it is divisible by the number (54) 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 5278621824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9359520000).

5278621824 is an abundant number, since it is smaller than the sum of its proper divisors (13440418176).

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

5278621824 is an equidigital number, since it uses as much as digits as its factorization.

5278621824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 146 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 5278621824 is about 72654.1246179458. The cubic root of 5278621824 is about 1741.1660198717.

The spelling of 5278621824 in words is "five billion, two hundred seventy-eight million, six hundred twenty-one thousand, eight hundred twenty-four".