1944965064 has 64 divisors (see below), whose sum is σ = 5564160000. Its totient is φ = 554992704.

The previous prime is 1944965023. The next prime is 1944965107. The reversal of 1944965064 is 4605694491.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131937 + ... + 145935.

It is an arithmetic number, because the mean of its divisors is an integer number (86940000).

Almost surely, 2^1944965064 is an apocalyptic number.

1944965064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1944965064 is an abundant number, since it is smaller than the sum of its proper divisors (3619194936).

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

1944965064 is a wasteful number, since it uses less digits than its factorization.

1944965064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14842 (or 14838 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 1944965064 is about 44101.7580601953. The cubic root of 1944965064 is about 1248.2567837411.

The spelling of 1944965064 in words is "one billion, nine hundred forty-four million, nine hundred sixty-five thousand, sixty-four".