28869028149 has 8 divisors (see below), whose sum is σ = 41452963552. Its totient is φ = 17765555760.

The previous prime is 28869028129. The next prime is 28869028171. The reversal of 28869028149 is 94182096882.

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

It is not a de Polignac number, because 28869028149 - 2⁷ = 28869028021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28869028129) 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 7 ways as a sum of consecutive naturals, for example, 370115707 + ... + 370115784.

It is an arithmetic number, because the mean of its divisors is an integer number (5181620444).

Almost surely, 2^28869028149 is an apocalyptic number.

It is an amenable number.

28869028149 is a deficient number, since it is larger than the sum of its proper divisors (12583935403).

28869028149 is a wasteful number, since it uses less digits than its factorization.

28869028149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740231507.

The product of its (nonzero) digits is 3981312, while the sum is 57.

The spelling of 28869028149 in words is "twenty-eight billion, eight hundred sixty-nine million, twenty-eight thousand, one hundred forty-nine".