218796907249 has 8 divisors (see below), whose sum is σ = 222965099712. Its totient is φ = 214630194480.

The previous prime is 218796907247. The next prime is 218796907279. The reversal of 218796907249 is 942709697812.

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 218796907249 - 2¹ = 218796907247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218796907247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69067 + ... + 665104.

It is an arithmetic number, because the mean of its divisors is an integer number (27870637464).

Almost surely, 2^218796907249 is an apocalyptic number.

It is an amenable number.

218796907249 is a deficient number, since it is larger than the sum of its proper divisors (4168192463).

218796907249 is an equidigital number, since it uses as much as digits as its factorization.

218796907249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739847.

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 218796907249 in words is "two hundred eighteen billion, seven hundred ninety-six million, nine hundred seven thousand, two hundred forty-nine".