5577889865 has 8 divisors (see below), whose sum is σ = 6819760008. Its totient is φ = 4378117120.

The previous prime is 5577889853. The next prime is 5577889909. The reversal of 5577889865 is 5689887755.

It can be written as a sum of positive squares in 4 ways, for example, as 758892304 + 4818997561 = 27548^2 + 69419^2 .

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

It is not a de Polignac number, because 5577889865 - 2¹⁸ = 5577627721 is a prime.

It is a super-2 number, since 2×5577889865² = 62225710692139436450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5577889795 and 5577889804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10524056 + ... + 10524585.

It is an arithmetic number, because the mean of its divisors is an integer number (852470001).

Almost surely, 2^5577889865 is an apocalyptic number.

It is an amenable number.

5577889865 is a deficient number, since it is larger than the sum of its proper divisors (1241870143).

5577889865 is a wasteful number, since it uses less digits than its factorization.

5577889865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21048699.

The product of its digits is 169344000, while the sum is 68.

The square root of 5577889865 is about 74685.2720755572. The cubic root of 5577889865 is about 1773.4678164596.

The spelling of 5577889865 in words is "five billion, five hundred seventy-seven million, eight hundred eighty-nine thousand, eight hundred sixty-five".