284317380891 has 6 divisors (see below), whose sum is σ = 410680661300. Its totient is φ = 189544920588.

The previous prime is 284317380887. The next prime is 284317380961. The reversal of 284317380891 is 198083713482.

It is a happy number.

It is not a de Polignac number, because 284317380891 - 2² = 284317380887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284317380791) 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 5 ways as a sum of consecutive naturals, for example, 15795410041 + ... + 15795410058.

Almost surely, 2^284317380891 is an apocalyptic number.

284317380891 is a deficient number, since it is larger than the sum of its proper divisors (126363280409).

284317380891 is a wasteful number, since it uses less digits than its factorization.

284317380891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31590820105 (or 31590820102 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 284317380891 in words is "two hundred eighty-four billion, three hundred seventeen million, three hundred eighty thousand, eight hundred ninety-one".