285193842347 has 4 divisors (see below), whose sum is σ = 285202994856. Its totient is φ = 285184689840.

The previous prime is 285193842343. The next prime is 285193842359. The reversal of 285193842347 is 743248391582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 285193842347 - 2² = 285193842343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285193842292 and 285193842301.

It is not an unprimeable number, because it can be changed into a prime (285193842343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4529354 + ... + 4591887.

It is an arithmetic number, because the mean of its divisors is an integer number (71300748714).

Almost surely, 2^285193842347 is an apocalyptic number.

285193842347 is a deficient number, since it is larger than the sum of its proper divisors (9152509).

285193842347 is an equidigital number, since it uses as much as digits as its factorization.

285193842347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152508.

The product of its digits is 11612160, while the sum is 56.

The spelling of 285193842347 in words is "two hundred eighty-five billion, one hundred ninety-three million, eight hundred forty-two thousand, three hundred forty-seven".