284847272013 has 4 divisors (see below), whose sum is σ = 379796362688. Its totient is φ = 189898181340.

The previous prime is 284847271963. The next prime is 284847272041. The reversal of 284847272013 is 310272748482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 284847272013 - 2⁸ = 284847271757 is a prime.

It is a super-2 number, since 2×284847272013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284847272063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47474545333 + ... + 47474545338.

It is an arithmetic number, because the mean of its divisors is an integer number (94949090672).

Almost surely, 2^284847272013 is an apocalyptic number.

It is an amenable number.

284847272013 is a deficient number, since it is larger than the sum of its proper divisors (94949090675).

284847272013 is an equidigital number, since it uses as much as digits as its factorization.

284847272013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94949090674.

The product of its (nonzero) digits is 1204224, while the sum is 48.

The spelling of 284847272013 in words is "two hundred eighty-four billion, eight hundred forty-seven million, two hundred seventy-two thousand, thirteen".