840927065664 has 112 divisors (see below), whose sum is σ = 2543013260928. Its totient is φ = 240245035008.

The previous prime is 840927065663. The next prime is 840927065683. The reversal of 840927065664 is 466560729048.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (840927065663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26021164 + ... + 26053460.

It is an arithmetic number, because the mean of its divisors is an integer number (22705475544).

Almost surely, 2^840927065664 is an apocalyptic number.

840927065664 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

840927065664 is an abundant number, since it is smaller than the sum of its proper divisors (1702086195264).

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

840927065664 is a wasteful number, since it uses less digits than its factorization.

840927065664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51692 (or 51682 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 840927065664 in words is "eight hundred forty billion, nine hundred twenty-seven million, sixty-five thousand, six hundred sixty-four".