384880755350885 has 16 divisors (see below), whose sum is σ = 492139768417776. Its totient is φ = 287946756185088.

The previous prime is 384880755350873. The next prime is 384880755350891. The reversal of 384880755350885 is 588053557088483.

It is a Cunningham number, because it is equal to 19618378²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 46549207999204 + 338331547351681 = 6822698^2 + 18393791^2 .

It is a cyclic number.

It is not a de Polignac number, because 384880755350885 - 2¹⁴ = 384880755334501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14420397122 + ... + 14420423811.

It is an arithmetic number, because the mean of its divisors is an integer number (30758735526111).

Almost surely, 2^{384880755350885} is an apocalyptic number.

It is an amenable number.

384880755350885 is a deficient number, since it is larger than the sum of its proper divisors (107259013066891).

384880755350885 is a wasteful number, since it uses less digits than its factorization.

384880755350885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28840821112.

The product of its (nonzero) digits is 5160960000, while the sum is 77.

The spelling of 384880755350885 in words is "three hundred eighty-four trillion, eight hundred eighty billion, seven hundred fifty-five million, three hundred fifty thousand, eight hundred eighty-five".