5579721860 has 48 divisors (see below), whose sum is σ = 11787790896. Its totient is φ = 2218524672.

The previous prime is 5579721859. The next prime is 5579721883. The reversal of 5579721860 is 681279755.

It can be written as a sum of positive squares in 8 ways, for example, as 300536896 + 5279184964 = 17336^2 + 72658^2 .

It is a super-2 number, since 2×5579721860² = 62266592069923719200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5579721799 and 5579721808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3458414 + ... + 3460026.

It is an arithmetic number, because the mean of its divisors is an integer number (245578977).

Almost surely, 2^5579721860 is an apocalyptic number.

It is an amenable number.

5579721860 is an abundant number, since it is smaller than the sum of its proper divisors (6208069036).

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

5579721860 is a wasteful number, since it uses less digits than its factorization.

5579721860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552 (or 2550 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The square root of 5579721860 is about 74697.5358361974. The cubic root of 5579721860 is about 1773.6619537062.

The spelling of 5579721860 in words is "five billion, five hundred seventy-nine million, seven hundred twenty-one thousand, eight hundred sixty".