384885299215 has 4 divisors (see below), whose sum is σ = 461862359064. Its totient is φ = 307908239368.

The previous prime is 384885299167. The next prime is 384885299263. The reversal of 384885299215 is 512992588483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512992588483 = 739 ⋅694171297.

It is an interprime number because it is at equal distance from previous prime (384885299167) and next prime (384885299263).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384885299215 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 3 ways as a sum of consecutive naturals, for example, 38488529917 + ... + 38488529926.

It is an arithmetic number, because the mean of its divisors is an integer number (115465589766).

Almost surely, 2^384885299215 is an apocalyptic number.

384885299215 is a deficient number, since it is larger than the sum of its proper divisors (76977059849).

384885299215 is an equidigital number, since it uses as much as digits as its factorization.

384885299215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76977059848.

The product of its digits is 49766400, while the sum is 64.

The spelling of 384885299215 in words is "three hundred eighty-four billion, eight hundred eighty-five million, two hundred ninety-nine thousand, two hundred fifteen".