5518489377 has 4 divisors (see below), whose sum is σ = 7357985840. Its totient is φ = 3678992916.

The previous prime is 5518489367. The next prime is 5518489381. The reversal of 5518489377 is 7739848155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-5518489377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5518489367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 919748227 + ... + 919748232.

It is an arithmetic number, because the mean of its divisors is an integer number (1839496460).

Almost surely, 2^5518489377 is an apocalyptic number.

It is an amenable number.

5518489377 is a deficient number, since it is larger than the sum of its proper divisors (1839496463).

5518489377 is a wasteful number, since it uses less digits than its factorization.

5518489377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839496462.

The product of its digits is 8467200, while the sum is 57.

The square root of 5518489377 is about 74286.5356373549. The cubic root of 5518489377 is about 1767.1499535328.

The spelling of 5518489377 in words is "five billion, five hundred eighteen million, four hundred eighty-nine thousand, three hundred seventy-seven".