64323584907 has 4 divisors (see below), whose sum is σ = 85764779880. Its totient is φ = 42882389936.

The previous prime is 64323584873. The next prime is 64323584917. The reversal of 64323584907 is 70948532346.

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 64323584907 - 2¹¹ = 64323582859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64323584907.

It is not an unprimeable number, because it can be changed into a prime (64323584917) 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, 10720597482 + ... + 10720597487.

It is an arithmetic number, because the mean of its divisors is an integer number (21441194970).

Almost surely, 2^64323584907 is an apocalyptic number.

64323584907 is a deficient number, since it is larger than the sum of its proper divisors (21441194973).

64323584907 is a wasteful number, since it uses less digits than its factorization.

64323584907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21441194972.

The product of its (nonzero) digits is 4354560, while the sum is 51.

It can be divided in two parts, 64323 and 584907, that added together give a triangular number (649230 = T₁₁₃₉).

The spelling of 64323584907 in words is "sixty-four billion, three hundred twenty-three million, five hundred eighty-four thousand, nine hundred seven".