284834473642 has 8 divisors (see below), whose sum is σ = 427258692036. Its totient is φ = 142414909632.

The previous prime is 284834473621. The next prime is 284834473643. The reversal of 284834473642 is 246374438482.

It can be written as a sum of positive squares in 2 ways, for example, as 282151130041 + 2683343601 = 531179^2 + 51801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×284834473642² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (284834473643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006353 + ... + 1257940.

Almost surely, 2^284834473642 is an apocalyptic number.

284834473642 is a deficient number, since it is larger than the sum of its proper divisors (142424218394).

284834473642 is a wasteful number, since it uses less digits than its factorization.

284834473642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327192.

The product of its digits is 24772608, while the sum is 55.

The spelling of 284834473642 in words is "two hundred eighty-four billion, eight hundred thirty-four million, four hundred seventy-three thousand, six hundred forty-two".