384432347447 has 16 divisors (see below), whose sum is σ = 415212696000. Its totient is φ = 354838412544.

The previous prime is 384432347443. The next prime is 384432347471. The reversal of 384432347447 is 744743234483.

It is a cyclic number.

It is not a de Polignac number, because 384432347447 - 2² = 384432347443 is a prime.

It is a super-2 number, since 2×384432347447² (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 (384432347443) 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 in 15 ways as a sum of consecutive naturals, for example, 1032179 + ... + 1354347.

It is an arithmetic number, because the mean of its divisors is an integer number (25950793500).

Almost surely, 2^384432347447 is an apocalyptic number.

384432347447 is a deficient number, since it is larger than the sum of its proper divisors (30780348553).

384432347447 is a wasteful number, since it uses less digits than its factorization.

384432347447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324010.

The product of its digits is 21676032, while the sum is 53.

The spelling of 384432347447 in words is "three hundred eighty-four billion, four hundred thirty-two million, three hundred forty-seven thousand, four hundred forty-seven".