284638454031231 has 12 divisors (see below), whose sum is σ = 411266398768680. Its totient is φ = 189702677738160.

The previous prime is 284638454031209. The next prime is 284638454031247. The reversal of 284638454031231 is 132130454836482.

284638454031231 is a `hidden beast` number, since 2 + 8 + 4 + 6 + 3 + 84 + 540 + 3 + 12 + 3 + 1 = 666.

It is not a de Polignac number, because 284638454031231 - 2⁹ = 284638454030719 is a prime.

It is a super-2 number, since 2×284638454031231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284638454031251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4690935976 + ... + 4690996653.

It is an arithmetic number, because the mean of its divisors is an integer number (34272199897390).

Almost surely, 2^{284638454031231} is an apocalyptic number.

284638454031231 is a deficient number, since it is larger than the sum of its proper divisors (126627944737449).

284638454031231 is a wasteful number, since it uses less digits than its factorization.

284638454031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9381936006 (or 9381936003 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 284638454031231 in words is "two hundred eighty-four trillion, six hundred thirty-eight billion, four hundred fifty-four million, thirty-one thousand, two hundred thirty-one".