249348283209 has 12 divisors (see below), whose sum is σ = 363535816176. Its totient is φ = 164678616312.

The previous prime is 249348283159. The next prime is 249348283213. The reversal of 249348283209 is 902382843942.

249348283209 is a `hidden beast` number, since 249 + 348 + 28 + 32 + 0 + 9 = 666.

It is not a de Polignac number, because 249348283209 - 2¹² = 249348279113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249348283109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129463359 + ... + 129465284.

It is an arithmetic number, because the mean of its divisors is an integer number (30294651348).

Almost surely, 2^249348283209 is an apocalyptic number.

It is an amenable number.

249348283209 is a deficient number, since it is larger than the sum of its proper divisors (114187532967).

249348283209 is a wasteful number, since it uses less digits than its factorization.

249348283209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258928756 (or 258928753 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 249348283209 in words is "two hundred forty-nine billion, three hundred forty-eight million, two hundred eighty-three thousand, two hundred nine".