64465728009875 has 16 divisors (see below), whose sum is σ = 80458846288704. Its totient is φ = 51568981297600.

The previous prime is 64465728009833. The next prime is 64465728009941. The reversal of 64465728009875 is 57890082756446.

64465728009875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64465728009875 - 2¹² = 64465728005779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64465728009799 and 64465728009808.

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 15 ways as a sum of consecutive naturals, for example, 16207514 + ... + 19789263.

It is an arithmetic number, because the mean of its divisors is an integer number (5028677893044).

Almost surely, 2^{64465728009875} is an apocalyptic number.

64465728009875 is a deficient number, since it is larger than the sum of its proper divisors (15993118278829).

64465728009875 is a wasteful number, since it uses less digits than its factorization.

64465728009875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36011119 (or 36011109 counting only the distinct ones).

The product of its (nonzero) digits is 812851200, while the sum is 71.

The spelling of 64465728009875 in words is "sixty-four trillion, four hundred sixty-five billion, seven hundred twenty-eight million, nine thousand, eight hundred seventy-five".