284012249138 has 6 divisors (see below), whose sum is σ = 426019504221. Its totient is φ = 142005747732.

The previous prime is 284012249137. The next prime is 284012249159. The reversal of 284012249138 is 831942210482.

It can be written as a sum of positive squares in 2 ways, for example, as 268258735969 + 15753513169 = 517937^2 + 125513^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=376837.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284012249137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 565256 + ... + 942092.

Almost surely, 2^284012249138 is an apocalyptic number.

284012249138 is a deficient number, since it is larger than the sum of its proper divisors (142007255083).

284012249138 is an frugal number, since it uses more digits than its factorization.

284012249138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753676 (or 376839 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 284012249138 in words is "two hundred eighty-four billion, twelve million, two hundred forty-nine thousand, one hundred thirty-eight".