4221363526818 has 8 divisors (see below), whose sum is σ = 8442727053648. Its totient is φ = 1407121175604.

The previous prime is 4221363526733. The next prime is 4221363526819. The reversal of 4221363526818 is 8186253631224.

It is a sphenic number, since it is the product of 3 distinct primes.

4221363526818 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (4221363526819) 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, 351780293896 + ... + 351780293907.

It is an arithmetic number, because the mean of its divisors is an integer number (1055340881706).

Almost surely, 2^{4221363526818} is an apocalyptic number.

4221363526818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221363526818 is a wasteful number, since it uses less digits than its factorization.

4221363526818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703560587808.

The product of its digits is 3317760, while the sum is 51.

The spelling of 4221363526818 in words is "four trillion, two hundred twenty-one billion, three hundred sixty-three million, five hundred twenty-six thousand, eight hundred eighteen".