5449489988 has 6 divisors (see below), whose sum is σ = 9536607486. Its totient is φ = 2724744992.

The previous prime is 5449489979. The next prime is 5449489993. The reversal of 5449489988 is 8899849445.

It can be written as a sum of positive squares in only one way, i.e., 5149784644 + 299705344 = 71762^2 + 17312^2 .

It is a super-2 number, since 2×5449489988² = 59393882258624480288, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 681186245 + ... + 681186252.

It is an arithmetic number, because the mean of its divisors is an integer number (1589434581).

Almost surely, 2^5449489988 is an apocalyptic number.

It is an amenable number.

5449489988 is a deficient number, since it is larger than the sum of its proper divisors (4087117498).

5449489988 is a wasteful number, since it uses less digits than its factorization.

5449489988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362372501 (or 1362372499 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 68.

The square root of 5449489988 is about 73820.6609832234. The cubic root of 5449489988 is about 1759.7539674163.

The spelling of 5449489988 in words is "five billion, four hundred forty-nine million, four hundred eighty-nine thousand, nine hundred eighty-eight".