28281035149 has 8 divisors (see below), whose sum is σ = 28680572160. Its totient is φ = 27883842000.

The previous prime is 28281035131. The next prime is 28281035179. The reversal of 28281035149 is 94153018282.

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

It is a cyclic number.

It is not a de Polignac number, because 28281035149 - 2⁷ = 28281035021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28281035179) 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, 561657 + ... + 609934.

It is an arithmetic number, because the mean of its divisors is an integer number (3585071520).

Almost surely, 2^28281035149 is an apocalyptic number.

It is an amenable number.

28281035149 is a deficient number, since it is larger than the sum of its proper divisors (399537011).

28281035149 is a wasteful number, since it uses less digits than its factorization.

28281035149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171931.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 28281035149 in words is "twenty-eight billion, two hundred eighty-one million, thirty-five thousand, one hundred forty-nine".