6440642026022 has 8 divisors (see below), whose sum is σ = 9673526062200. Its totient is φ = 3216133338624.

The previous prime is 6440642026001. The next prime is 6440642026037. The reversal of 6440642026022 is 2206202460446.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093835272 + ... + 2093838347.

It is an arithmetic number, because the mean of its divisors is an integer number (1209190757775).

Almost surely, 2^{6440642026022} is an apocalyptic number.

6440642026022 is a deficient number, since it is larger than the sum of its proper divisors (3232884036178).

6440642026022 is a wasteful number, since it uses less digits than its factorization.

6440642026022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187674390.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 6440642026022 its reverse (2206202460446), we get a palindrome (8646844486468).

The spelling of 6440642026022 in words is "six trillion, four hundred forty billion, six hundred forty-two million, twenty-six thousand, twenty-two".