1944880705064 has 32 divisors (see below), whose sum is σ = 3980161506240. Its totient is φ = 883593033600.

The previous prime is 1944880705057. The next prime is 1944880705093. The reversal of 1944880705064 is 4605070884491.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5369252 + ... + 5720019.

It is an arithmetic number, because the mean of its divisors is an integer number (124380047070).

Almost surely, 2^{1944880705064} is an apocalyptic number.

It is an amenable number.

1944880705064 is an abundant number, since it is smaller than the sum of its proper divisors (2035280801176).

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

1944880705064 is a wasteful number, since it uses less digits than its factorization.

1944880705064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091281 (or 11091277 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 1944880705064 in words is "one trillion, nine hundred forty-four billion, eight hundred eighty million, seven hundred five thousand, sixty-four".