5571726720 has 512 divisors, whose sum is σ = 21507932160. Its totient is φ = 1199923200.

The previous prime is 5571726709. The next prime is 5571726739. The reversal of 5571726720 is 276271755.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17915365 + ... + 17915675.

It is an arithmetic number, because the mean of its divisors is an integer number (42007680).

Almost surely, 2^5571726720 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 5571726720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10753966080).

5571726720 is an abundant number, since it is smaller than the sum of its proper divisors (15936205440).

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

5571726720 is a wasteful number, since it uses less digits than its factorization.

5571726720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 42.

The square root of 5571726720 is about 74643.9998928246. Note that the first 3 decimals coincide. The cubic root of 5571726720 is about 1772.8143932894.

The spelling of 5571726720 in words is "five billion, five hundred seventy-one million, seven hundred twenty-six thousand, seven hundred twenty".