4226243661989 has 4 divisors (see below), whose sum is σ = 4230117396960. Its totient is φ = 4222369927020.

The previous prime is 4226243661977. The next prime is 4226243662013. The reversal of 4226243661989 is 9891663426224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4226243661989 - 2⁴ = 4226243661973 is a prime.

It is a super-2 number, since 2×4226243661989² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4226243661089) 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, 1936865849 + ... + 1936868030.

It is an arithmetic number, because the mean of its divisors is an integer number (1057529349240).

Almost surely, 2^{4226243661989} is an apocalyptic number.

It is an amenable number.

4226243661989 is a deficient number, since it is larger than the sum of its proper divisors (3873734971).

4226243661989 is a wasteful number, since it uses less digits than its factorization.

4226243661989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873734970.

The product of its digits is 53747712, while the sum is 62.

The spelling of 4226243661989 in words is "four trillion, two hundred twenty-six billion, two hundred forty-three million, six hundred sixty-one thousand, nine hundred eighty-nine".