64043517740 has 24 divisors (see below), whose sum is σ = 141569882160. Its totient is φ = 24269122368.

The previous prime is 64043517731. The next prime is 64043517751. The reversal of 64043517740 is 4771534046.

64043517740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 84267407 + ... + 84268166.

It is an arithmetic number, because the mean of its divisors is an integer number (5898745090).

Almost surely, 2^64043517740 is an apocalyptic number.

It is an amenable number.

64043517740 is an abundant number, since it is smaller than the sum of its proper divisors (77526364420).

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

64043517740 is a wasteful number, since it uses less digits than its factorization.

64043517740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168535601 (or 168535599 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 64043517740 in words is "sixty-four billion, forty-three million, five hundred seventeen thousand, seven hundred forty".