384218421469 has 16 divisors (see below), whose sum is σ = 386885283840. Its totient is φ = 381562272000.

The previous prime is 384218421409. The next prime is 384218421479. The reversal of 384218421469 is 964124812483.

It is a cyclic number.

It is not a de Polignac number, because 384218421469 - 2¹³ = 384218413277 is a prime.

It is a super-2 number, since 2×384218421469² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a 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 in 15 ways as a sum of consecutive naturals, for example, 182006724 + ... + 182008834.

It is an arithmetic number, because the mean of its divisors is an integer number (24180330240).

Almost surely, 2^384218421469 is an apocalyptic number.

It is an amenable number.

384218421469 is a deficient number, since it is larger than the sum of its proper divisors (2666862371).

384218421469 is a wasteful number, since it uses less digits than its factorization.

384218421469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092.

The product of its digits is 2654208, while the sum is 52.

The spelling of 384218421469 in words is "three hundred eighty-four billion, two hundred eighteen million, four hundred twenty-one thousand, four hundred sixty-nine".