30844000219 has 4 divisors (see below), whose sum is σ = 31838968000. Its totient is φ = 29849032440.

The previous prime is 30844000169. The next prime is 30844000277. The reversal of 30844000219 is 91200044803.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30844000219 - 2¹⁹ = 30843475931 is a prime.

It is a super-2 number, since 2×30844000219² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 994967749 = 30844000219 / (3 + 0 + 8 + 4 + 4 + 0 + 0 + 0 + 2 + 1 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30844000279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497483844 + ... + 497483905.

It is an arithmetic number, because the mean of its divisors is an integer number (7959742000).

Almost surely, 2^30844000219 is an apocalyptic number.

30844000219 is a deficient number, since it is larger than the sum of its proper divisors (994967781).

30844000219 is an equidigital number, since it uses as much as digits as its factorization.

30844000219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994967780.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 30844000219 in words is "thirty billion, eight hundred forty-four million, two hundred nineteen", and thus it is an aban number.