284000991849 has 24 divisors (see below), whose sum is σ = 438571516032. Its totient is φ = 176466625920.

The previous prime is 284000991767. The next prime is 284000991863. The reversal of 284000991849 is 948199000482.

284000991849 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 284000991849 - 2⁷ = 284000991721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 284000991795 and 284000991804.

It is not an unprimeable number, because it can be changed into a prime (284000991149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8994997 + ... + 9026514.

It is an arithmetic number, because the mean of its divisors is an integer number (18273813168).

Almost surely, 2^284000991849 is an apocalyptic number.

It is an amenable number.

284000991849 is a deficient number, since it is larger than the sum of its proper divisors (154570524183).

284000991849 is a wasteful number, since it uses less digits than its factorization.

284000991849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18021637 (or 18021634 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 284000991849 in words is "two hundred eighty-four billion, nine hundred ninety-one thousand, eight hundred forty-nine".