28008735249 has 16 divisors (see below), whose sum is σ = 40787447040. Its totient is φ = 16955212560.

The previous prime is 28008735233. The next prime is 28008735257. The reversal of 28008735249 is 94253780082.

It is not a de Polignac number, because 28008735249 - 2⁴ = 28008735233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28008735198 and 28008735207.

It is not an unprimeable number, because it can be changed into a prime (28008735269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465687 + ... + 522380.

It is an arithmetic number, because the mean of its divisors is an integer number (2549215440).

Almost surely, 2^28008735249 is an apocalyptic number.

It is an amenable number.

28008735249 is a deficient number, since it is larger than the sum of its proper divisors (12778711791).

28008735249 is a wasteful number, since it uses less digits than its factorization.

28008735249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988940.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 28008735249 in words is "twenty-eight billion, eight million, seven hundred thirty-five thousand, two hundred forty-nine".