5518690389 has 12 divisors (see below), whose sum is σ = 7976879872. Its totient is φ = 3676617000.

The previous prime is 5518690379. The next prime is 5518690393. The reversal of 5518690389 is 9830968155.

It is a happy number.

5518690389 is a `hidden beast` number, since 5 + 518 + 6 + 90 + 38 + 9 = 666.

It is not a de Polignac number, because 5518690389 - 2¹¹ = 5518688341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518690369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195187 + ... + 221664.

Almost surely, 2^5518690389 is an apocalyptic number.

It is an amenable number.

5518690389 is a deficient number, since it is larger than the sum of its proper divisors (2458189483).

5518690389 is a wasteful number, since it uses less digits than its factorization.

5518690389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418328 (or 418325 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The square root of 5518690389 is about 74287.8885754603. Note that the first 3 decimals coincide. The cubic root of 5518690389 is about 1767.1714095273.

The spelling of 5518690389 in words is "five billion, five hundred eighteen million, six hundred ninety thousand, three hundred eighty-nine".