384218421479 has 2 divisors, whose sum is σ = 384218421480. Its totient is φ = 384218421478.

The previous prime is 384218421409. The next prime is 384218421491. The reversal of 384218421479 is 974124812483.

It is a strong prime.

It is an emirp because it is prime and its reverse (974124812483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384218421479 - 2³⁶ = 315498944743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384218421479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384218421409) 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 as a sum of consecutive naturals, namely, 192109210739 + 192109210740.

It is an arithmetic number, because the mean of its divisors is an integer number (192109210740).

Almost surely, 2^384218421479 is an apocalyptic number.

384218421479 is a deficient number, since it is larger than the sum of its proper divisors (1).

384218421479 is an equidigital number, since it uses as much as digits as its factorization.

384218421479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3096576, while the sum is 53.

The spelling of 384218421479 in words is "three hundred eighty-four billion, two hundred eighteen million, four hundred twenty-one thousand, four hundred seventy-nine".