4284640818867 has 4 divisors (see below), whose sum is σ = 5712854425160. Its totient is φ = 2856427212576.

The previous prime is 4284640818847. The next prime is 4284640818917. The reversal of 4284640818867 is 7688180464824.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4284640818867 - 2¹⁰ = 4284640817843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4284640818798 and 4284640818807.

It is not an unprimeable number, because it can be changed into a prime (4284640818847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714106803142 + ... + 714106803147.

It is an arithmetic number, because the mean of its divisors is an integer number (1428213606290).

Almost surely, 2^{4284640818867} is an apocalyptic number.

4284640818867 is a deficient number, since it is larger than the sum of its proper divisors (1428213606293).

4284640818867 is a wasteful number, since it uses less digits than its factorization.

4284640818867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428213606292.

The product of its (nonzero) digits is 132120576, while the sum is 66.

The spelling of 4284640818867 in words is "four trillion, two hundred eighty-four billion, six hundred forty million, eight hundred eighteen thousand, eight hundred sixty-seven".