5728209861 has 8 divisors (see below), whose sum is σ = 8331941664. Its totient is φ = 3471642320.

The previous prime is 5728209859. The next prime is 5728209919. The reversal of 5728209861 is 1689028275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5728209861 - 2¹ = 5728209859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5728209861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5728209821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86791026 + ... + 86791091.

It is an arithmetic number, because the mean of its divisors is an integer number (1041492708).

Almost surely, 2^5728209861 is an apocalyptic number.

It is an amenable number.

5728209861 is a deficient number, since it is larger than the sum of its proper divisors (2603731803).

5728209861 is a wasteful number, since it uses less digits than its factorization.

5728209861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173582131.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 5728209861 is about 75684.9381383112. The cubic root of 5728209861 is about 1789.2580241016.

The spelling of 5728209861 in words is "five billion, seven hundred twenty-eight million, two hundred nine thousand, eight hundred sixty-one".