64384546672 has 20 divisors (see below), whose sum is σ = 124773786040. Its totient is φ = 32184859968.

The previous prime is 64384546657. The next prime is 64384546717. The reversal of 64384546672 is 27664548346.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391347 + ... + 530962.

It is an arithmetic number, because the mean of its divisors is an integer number (6238689302).

Almost surely, 2^64384546672 is an apocalyptic number.

It is an amenable number.

64384546672 is a deficient number, since it is larger than the sum of its proper divisors (60389239368).

64384546672 is a wasteful number, since it uses less digits than its factorization.

64384546672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926680 (or 926674 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 55.

The spelling of 64384546672 in words is "sixty-four billion, three hundred eighty-four million, five hundred forty-six thousand, six hundred seventy-two".