344385662856 has 32 divisors (see below), whose sum is σ = 911609108640. Its totient is φ = 108042560768.

The previous prime is 344385662851. The next prime is 344385662909. The reversal of 344385662856 is 658266583443.

It is a self number, because there is not a number n which added to its sum of digits gives 344385662856.

It is not an unprimeable number, because it can be changed into a prime (344385662851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422040846 + ... + 422041661.

It is an arithmetic number, because the mean of its divisors is an integer number (28487784645).

Almost surely, 2^344385662856 is an apocalyptic number.

It is an amenable number.

344385662856 is an abundant number, since it is smaller than the sum of its proper divisors (567223445784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344385662856 is a wasteful number, since it uses less digits than its factorization.

344385662856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844082533 (or 844082529 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 60.

The spelling of 344385662856 in words is "three hundred forty-four billion, three hundred eighty-five million, six hundred sixty-two thousand, eight hundred fifty-six".