4223444213993 has 4 divisors (see below), whose sum is σ = 4224047483988. Its totient is φ = 4222840944000.

The previous prime is 4223444213981. The next prime is 4223444214023. The reversal of 4223444213993 is 3993124443224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 604044503209 + 3619399710784 = 777203^2 + 1902472^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223444213993 - 2¹⁰ = 4223444212969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4223444213293) 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, 301624496 + ... + 301638497.

It is an arithmetic number, because the mean of its divisors is an integer number (1056011870997).

Almost surely, 2^{4223444213993} is an apocalyptic number.

It is an amenable number.

4223444213993 is a deficient number, since it is larger than the sum of its proper divisors (603269995).

4223444213993 is an equidigital number, since it uses as much as digits as its factorization.

4223444213993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603269994.

The product of its digits is 4478976, while the sum is 50.

The spelling of 4223444213993 in words is "four trillion, two hundred twenty-three billion, four hundred forty-four million, two hundred thirteen thousand, nine hundred ninety-three".