5581898861 has 8 divisors (see below), whose sum is σ = 6959250624. Its totient is φ = 4349531520.

The previous prime is 5581898851. The next prime is 5581898863. The reversal of 5581898861 is 1688981855.

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 5581898861 - 2⁶ = 5581898797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5581898861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581898863) 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, 36246020 + ... + 36246173.

It is an arithmetic number, because the mean of its divisors is an integer number (869906328).

Almost surely, 2^5581898861 is an apocalyptic number.

It is an amenable number.

5581898861 is a deficient number, since it is larger than the sum of its proper divisors (1377351763).

5581898861 is a wasteful number, since it uses less digits than its factorization.

5581898861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72492211.

The product of its digits is 5529600, while the sum is 59.

The square root of 5581898861 is about 74712.1065223033. The cubic root of 5581898861 is about 1773.8925961336.

The spelling of 5581898861 in words is "five billion, five hundred eighty-one million, eight hundred ninety-eight thousand, eight hundred sixty-one".