3858646329 has 24 divisors (see below), whose sum is σ = 5789015232. Its totient is φ = 2568432240.

The previous prime is 3858646327. The next prime is 3858646333. The reversal of 3858646329 is 9236468583.

3858646329 is a `hidden beast` number, since 3 + 85 + 86 + 463 + 29 = 666.

It is not a de Polignac number, because 3858646329 - 2¹ = 3858646327 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3858646327) 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 23 ways as a sum of consecutive naturals, for example, 148612 + ... + 172634.

It is an arithmetic number, because the mean of its divisors is an integer number (241208968).

Almost surely, 2^3858646329 is an apocalyptic number.

It is an amenable number.

3858646329 is a deficient number, since it is larger than the sum of its proper divisors (1930368903).

3858646329 is an equidigital number, since it uses as much as digits as its factorization.

3858646329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24699 (or 24687 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The square root of 3858646329 is about 62118.0032599246. The cubic root of 3858646329 is about 1568.4776145566.

The spelling of 3858646329 in words is "three billion, eight hundred fifty-eight million, six hundred forty-six thousand, three hundred twenty-nine".