984378213223 has 2 divisors, whose sum is σ = 984378213224. Its totient is φ = 984378213222.

The previous prime is 984378213199. The next prime is 984378213239. The reversal of 984378213223 is 322312873489.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 984378213223 - 2⁹ = 984378212711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (984378213253) 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 as a sum of consecutive naturals, namely, 492189106611 + 492189106612.

It is an arithmetic number, because the mean of its divisors is an integer number (492189106612).

Almost surely, 2^984378213223 is an apocalyptic number.

984378213223 is a deficient number, since it is larger than the sum of its proper divisors (1).

984378213223 is an equidigital number, since it uses as much as digits as its factorization.

984378213223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 52.

The spelling of 984378213223 in words is "nine hundred eighty-four billion, three hundred seventy-eight million, two hundred thirteen thousand, two hundred twenty-three".