65943984788 has 24 divisors (see below), whose sum is σ = 126149504544. Its totient is φ = 29913480800.

The previous prime is 65943984773. The next prime is 65943984811. The reversal of 65943984788 is 88748934956.

65943984788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 1504595 + ... + 1547802.

It is an arithmetic number, because the mean of its divisors is an integer number (5256229356).

Almost surely, 2^65943984788 is an apocalyptic number.

It is an amenable number.

65943984788 is a deficient number, since it is larger than the sum of its proper divisors (60205519756).

65943984788 is a wasteful number, since it uses less digits than its factorization.

65943984788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052903 (or 3052901 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 71.

The spelling of 65943984788 in words is "sixty-five billion, nine hundred forty-three million, nine hundred eighty-four thousand, seven hundred eighty-eight".