5581544698 has 8 divisors (see below), whose sum is σ = 8376821460. Its totient is φ = 2789270880.

The previous prime is 5581544693. The next prime is 5581544701. The reversal of 5581544698 is 8964451855.

It can be written as a sum of positive squares in 2 ways, for example, as 5161991409 + 419553289 = 71847^2 + 20483^2 .

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

It is a super-2 number, since 2×5581544698² = 62307282431543822408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5581544693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746083 + ... + 753526.

Almost surely, 2^5581544698 is an apocalyptic number.

5581544698 is a deficient number, since it is larger than the sum of its proper divisors (2795276762).

5581544698 is a wasteful number, since it uses less digits than its factorization.

5581544698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501472.

The product of its digits is 6912000, while the sum is 55.

The square root of 5581544698 is about 74709.7362998960. The cubic root of 5581544698 is about 1773.8550784102.

The spelling of 5581544698 in words is "five billion, five hundred eighty-one million, five hundred forty-four thousand, six hundred ninety-eight".