840105328628 has 12 divisors (see below), whose sum is σ = 1534105382880. Its totient is φ = 401789504952.

The previous prime is 840105328597. The next prime is 840105328631. The reversal of 840105328628 is 826823501048.

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, 4565789738 + ... + 4565789921.

It is an arithmetic number, because the mean of its divisors is an integer number (127842115240).

Almost surely, 2^840105328628 is an apocalyptic number.

It is an amenable number.

840105328628 is a deficient number, since it is larger than the sum of its proper divisors (694000054252).

840105328628 is a wasteful number, since it uses less digits than its factorization.

840105328628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9131579686 (or 9131579684 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 840105328628 in words is "eight hundred forty billion, one hundred five million, three hundred twenty-eight thousand, six hundred twenty-eight".