4427931643 has 8 divisors (see below), whose sum is σ = 4453794576. Its totient is φ = 4402099200.

The previous prime is 4427931637. The next prime is 4427931659. The reversal of 4427931643 is 3461397244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4427931643 - 2⁵ = 4427931611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4427931643.

It is not an unprimeable number, because it can be changed into a prime (4427931943) 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 7 ways as a sum of consecutive naturals, for example, 325488 + ... + 338818.

It is an arithmetic number, because the mean of its divisors is an integer number (556724322).

Almost surely, 2^4427931643 is an apocalyptic number.

4427931643 is a deficient number, since it is larger than the sum of its proper divisors (25862933).

4427931643 is a wasteful number, since it uses less digits than its factorization.

4427931643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245.

The product of its digits is 435456, while the sum is 43.

The square root of 4427931643 is about 66542.7054078807. The cubic root of 4427931643 is about 1642.1026523969.

The spelling of 4427931643 in words is "four billion, four hundred twenty-seven million, nine hundred thirty-one thousand, six hundred forty-three".