28342338786646 has 16 divisors (see below), whose sum is σ = 43484193270144. Its totient is φ = 13849688479744.

The previous prime is 28342338786613. The next prime is 28342338786649. The reversal of 28342338786646 is 64668783324382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342338786649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520168390 + ... + 520222873.

It is an arithmetic number, because the mean of its divisors is an integer number (2717762079384).

Almost surely, 2^{28342338786646} is an apocalyptic number.

28342338786646 is a deficient number, since it is larger than the sum of its proper divisors (15141854483498).

28342338786646 is a wasteful number, since it uses less digits than its factorization.

28342338786646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040391575.

The product of its digits is 1337720832, while the sum is 70.

The spelling of 28342338786646 in words is "twenty-eight trillion, three hundred forty-two billion, three hundred thirty-eight million, seven hundred eighty-six thousand, six hundred forty-six".