320002387819 has 2 divisors, whose sum is σ = 320002387820. Its totient is φ = 320002387818.

The previous prime is 320002387811. The next prime is 320002387829. The reversal of 320002387819 is 918783200023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320002387819 - 2³ = 320002387811 is a prime.

It is a super-2 number, since 2×320002387819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320002387811) 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, 160001193909 + 160001193910.

It is an arithmetic number, because the mean of its divisors is an integer number (160001193910).

Almost surely, 2^320002387819 is an apocalyptic number.

320002387819 is a deficient number, since it is larger than the sum of its proper divisors (1).

320002387819 is an equidigital number, since it uses as much as digits as its factorization.

320002387819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 320002387819 in words is "three hundred twenty billion, two million, three hundred eighty-seven thousand, eight hundred nineteen".