28998129129 has 8 divisors (see below), whose sum is σ = 40345223232. Its totient is φ = 18491560560.

The previous prime is 28998129101. The next prime is 28998129133. The reversal of 28998129129 is 92192189982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28998129129 - 2¹³ = 28998120937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28998129169) 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 7 ways as a sum of consecutive naturals, for example, 210131302 + ... + 210131439.

It is an arithmetic number, because the mean of its divisors is an integer number (5043152904).

Almost surely, 2^28998129129 is an apocalyptic number.

It is an amenable number.

28998129129 is a deficient number, since it is larger than the sum of its proper divisors (11347094103).

28998129129 is a wasteful number, since it uses less digits than its factorization.

28998129129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420262767.

The product of its digits is 3359232, while the sum is 60.

The spelling of 28998129129 in words is "twenty-eight billion, nine hundred ninety-eight million, one hundred twenty-nine thousand, one hundred twenty-nine".