842780343327 has 32 divisors (see below), whose sum is σ = 1220133573120. Its totient is φ = 514364860800.

The previous prime is 842780343319. The next prime is 842780343331. The reversal of 842780343327 is 723343087248.

It is a happy number.

It is not a de Polignac number, because 842780343327 - 2³ = 842780343319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 842780343327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842780343337) 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 31 ways as a sum of consecutive naturals, for example, 3529693 + ... + 3760889.

It is an arithmetic number, because the mean of its divisors is an integer number (38129174160).

Almost surely, 2^842780343327 is an apocalyptic number.

842780343327 is a deficient number, since it is larger than the sum of its proper divisors (377353229793).

842780343327 is a wasteful number, since it uses less digits than its factorization.

842780343327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231983.

The product of its (nonzero) digits is 5419008, while the sum is 51.

The spelling of 842780343327 in words is "eight hundred forty-two billion, seven hundred eighty million, three hundred forty-three thousand, three hundred twenty-seven".