15428609289 has 12 divisors (see below), whose sum is σ = 22300139316. Its totient is φ = 10279107072.

The previous prime is 15428609227. The next prime is 15428609291. The reversal of 15428609289 is 98290682451.

It is a happy number.

15428609289 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 8 + 609 + 28 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7917440400 + 7511168889 = 88980^2 + 86667^2 .

It is not a de Polignac number, because 15428609289 - 2⁹ = 15428608777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15428609089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537952 + ... + 565905.

It is an arithmetic number, because the mean of its divisors is an integer number (1858344943).

Almost surely, 2^15428609289 is an apocalyptic number.

It is an amenable number.

15428609289 is a deficient number, since it is larger than the sum of its proper divisors (6871530027).

15428609289 is a wasteful number, since it uses less digits than its factorization.

15428609289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105416 (or 1105413 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 15428609289 in words is "fifteen billion, four hundred twenty-eight million, six hundred nine thousand, two hundred eighty-nine".