64063194768 has 60 divisors (see below), whose sum is σ = 180475367488. Its totient is φ = 21212971200.

The previous prime is 64063194763. The next prime is 64063194787. The reversal of 64063194768 is 86749136046.

It is not an unprimeable number, because it can be changed into a prime (64063194761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1451380 + ... + 1494867.

Almost surely, 2^64063194768 is an apocalyptic number.

It is an amenable number.

64063194768 is an abundant number, since it is smaller than the sum of its proper divisors (116412172720).

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

64063194768 is a wasteful number, since it uses less digits than its factorization.

64063194768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946412 (or 2946403 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 64063194768 in words is "sixty-four billion, sixty-three million, one hundred ninety-four thousand, seven hundred sixty-eight".