284401495849 has 4 divisors (see below), whose sum is σ = 284431376340. Its totient is φ = 284371615360.

The previous prime is 284401495843. The next prime is 284401495871. The reversal of 284401495849 is 948594104482.

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

It can be written as a sum of positive squares in 2 ways, for example, as 158458132624 + 125943363225 = 398068^2 + 354885^2 .

It is a cyclic number.

It is not a de Polignac number, because 284401495849 - 2⁵ = 284401495817 is a prime.

It is a super-2 number, since 2×284401495849² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284401495793 and 284401495802.

It is not an unprimeable number, because it can be changed into a prime (284401495843) 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, 14925964 + ... + 14945005.

It is an arithmetic number, because the mean of its divisors is an integer number (71107844085).

Almost surely, 2^284401495849 is an apocalyptic number.

It is an amenable number.

284401495849 is a deficient number, since it is larger than the sum of its proper divisors (29880491).

284401495849 is an equidigital number, since it uses as much as digits as its factorization.

284401495849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29880490.

The product of its (nonzero) digits is 13271040, while the sum is 58.

The spelling of 284401495849 in words is "two hundred eighty-four billion, four hundred one million, four hundred ninety-five thousand, eight hundred forty-nine".