5726539728 has 640 divisors, whose sum is σ = 21616394240. Its totient is φ = 1410877440.

The previous prime is 5726539717. The next prime is 5726539771. The reversal of 5726539728 is 8279356275.

5726539728 is a `hidden beast` number, since 572 + 65 + 3 + 9 + 7 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 45090801 + ... + 45090927.

It is an arithmetic number, because the mean of its divisors is an integer number (33775616).

Almost surely, 2^5726539728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5726539728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10808197120).

5726539728 is an abundant number, since it is smaller than the sum of its proper divisors (15889854512).

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

5726539728 is a wasteful number, since it uses less digits than its factorization.

5726539728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 220 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 5726539728 is about 75673.9038770962. The cubic root of 5726539728 is about 1789.0841134956.

The spelling of 5726539728 in words is "five billion, seven hundred twenty-six million, five hundred thirty-nine thousand, seven hundred twenty-eight".