5281689149 has 12 divisors (see below), whose sum is σ = 6120715488. Its totient is φ = 4519089600.

The previous prime is 5281689073. The next prime is 5281689151. The reversal of 5281689149 is 9419861825.

It is not a de Polignac number, because 5281689149 - 2¹² = 5281685053 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 5281689149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281688149) 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 11 ways as a sum of consecutive naturals, for example, 827537 + ... + 833894.

It is an arithmetic number, because the mean of its divisors is an integer number (510059624).

Almost surely, 2^5281689149 is an apocalyptic number.

It is an amenable number.

5281689149 is a deficient number, since it is larger than the sum of its proper divisors (839026339).

5281689149 is a wasteful number, since it uses less digits than its factorization.

5281689149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661476 (or 1661459 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 53.

The square root of 5281689149 is about 72675.2306429089. The cubic root of 5281689149 is about 1741.5032093947.

The spelling of 5281689149 in words is "five billion, two hundred eighty-one million, six hundred eighty-nine thousand, one hundred forty-nine".