3899465382905 has 8 divisors (see below), whose sum is σ = 4681420773000. Its totient is φ = 3118197430656.

The previous prime is 3899465382859. The next prime is 3899465382941. The reversal of 3899465382905 is 5092835649983.

It can be written as a sum of positive squares in 4 ways, for example, as 153630289849 + 3745835093056 = 391957^2 + 1935416^2 .

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 3899465382905 - 2¹⁶ = 3899465317369 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171846980 + ... + 171869669.

It is an arithmetic number, because the mean of its divisors is an integer number (585177596625).

Almost surely, 2^{3899465382905} is an apocalyptic number.

It is an amenable number.

3899465382905 is a deficient number, since it is larger than the sum of its proper divisors (781955390095).

3899465382905 is a wasteful number, since it uses less digits than its factorization.

3899465382905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343718923.

The product of its (nonzero) digits is 503884800, while the sum is 71.

The spelling of 3899465382905 in words is "three trillion, eight hundred ninety-nine billion, four hundred sixty-five million, three hundred eighty-two thousand, nine hundred five".