384963902985 has 64 divisors (see below), whose sum is σ = 628884725760. Its totient is φ = 201029856000.

The previous prime is 384963902959. The next prime is 384963902993. The reversal of 384963902985 is 589209369483.

It is not a de Polignac number, because 384963902985 - 2¹² = 384963898889 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 434006212 + ... + 434007098.

It is an arithmetic number, because the mean of its divisors is an integer number (9826323840).

Almost surely, 2^384963902985 is an apocalyptic number.

It is an amenable number.

384963902985 is a deficient number, since it is larger than the sum of its proper divisors (243920822775).

384963902985 is a wasteful number, since it uses less digits than its factorization.

384963902985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 100776960, while the sum is 66.

The spelling of 384963902985 in words is "three hundred eighty-four billion, nine hundred sixty-three million, nine hundred two thousand, nine hundred eighty-five".