64245643450223 has 8 divisors (see below), whose sum is σ = 65551203222336. Its totient is φ = 62943542116000.

The previous prime is 64245643450217. The next prime is 64245643450229. The reversal of 64245643450223 is 32205434654246.

It is an interprime number because it is at equal distance from previous prime (64245643450217) and next prime (64245643450229).

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 64245643450223 - 2³⁰ = 64244569708399 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 (64245643450229) 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, 864571943 + ... + 864646248.

It is an arithmetic number, because the mean of its divisors is an integer number (8193900402792).

Almost surely, 2^{64245643450223} is an apocalyptic number.

64245643450223 is a deficient number, since it is larger than the sum of its proper divisors (1305559772113).

64245643450223 is a wasteful number, since it uses less digits than its factorization.

64245643450223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729218945.

The product of its (nonzero) digits is 16588800, while the sum is 50.

The spelling of 64245643450223 in words is "sixty-four trillion, two hundred forty-five billion, six hundred forty-three million, four hundred fifty thousand, two hundred twenty-three".