64365073063 has 4 divisors (see below), whose sum is σ = 64395739800. Its totient is φ = 64334406328.

The previous prime is 64365073027. The next prime is 64365073067. The reversal of 64365073063 is 36037056346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64365073063 - 2²⁵ = 64331518631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64365073067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15330220 + ... + 15334417.

It is an arithmetic number, because the mean of its divisors is an integer number (16098934950).

Almost surely, 2^64365073063 is an apocalyptic number.

64365073063 is a deficient number, since it is larger than the sum of its proper divisors (30666737).

64365073063 is a wasteful number, since it uses less digits than its factorization.

64365073063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30666736.

The product of its (nonzero) digits is 816480, while the sum is 43.

The spelling of 64365073063 in words is "sixty-four billion, three hundred sixty-five million, seventy-three thousand, sixty-three".