384955888985 has 8 divisors (see below), whose sum is σ = 461953229640. Its totient is φ = 307960602624.

The previous prime is 384955888973. The next prime is 384955888987. The reversal of 384955888985 is 589888559483.

It can be written as a sum of positive squares in 4 ways, for example, as 5736396121 + 379219492864 = 75739^2 + 615808^2 .

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 384955888985 - 2¹⁰ = 384955887961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384955888987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65822 + ... + 879911.

It is an arithmetic number, because the mean of its divisors is an integer number (57744153705).

Almost surely, 2^384955888985 is an apocalyptic number.

It is an amenable number.

384955888985 is a deficient number, since it is larger than the sum of its proper divisors (76997340655).

384955888985 is an equidigital number, since it uses as much as digits as its factorization.

384955888985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027147.

The product of its digits is 3981312000, while the sum is 80.

The spelling of 384955888985 in words is "three hundred eighty-four billion, nine hundred fifty-five million, eight hundred eighty-eight thousand, nine hundred eighty-five".