64548336409 has 8 divisors (see below), whose sum is σ = 64710883040. Its totient is φ = 64385978976.

The previous prime is 64548336403. The next prime is 64548336449. The reversal of 64548336409 is 90463384546.

64548336409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64548336409 - 2³ = 64548336401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64548336401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648709 + ... + 741565.

It is an arithmetic number, because the mean of its divisors is an integer number (8088860380).

Almost surely, 2^64548336409 is an apocalyptic number.

It is an amenable number.

64548336409 is a deficient number, since it is larger than the sum of its proper divisors (162546631).

64548336409 is a wasteful number, since it uses less digits than its factorization.

64548336409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94599.

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 64548336409 in words is "sixty-four billion, five hundred forty-eight million, three hundred thirty-six thousand, four hundred nine".