645000364241 has 8 divisors (see below), whose sum is σ = 665107795968. Its totient is φ = 625101300000.

The previous prime is 645000364213. The next prime is 645000364279. The reversal of 645000364241 is 142463000546.

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 645000364241 - 2¹⁴ = 645000347857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (645000364291) 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, 52085585 + ... + 52097966.

It is an arithmetic number, because the mean of its divisors is an integer number (83138474496).

Almost surely, 2^645000364241 is an apocalyptic number.

It is an amenable number.

645000364241 is a deficient number, since it is larger than the sum of its proper divisors (20107431727).

645000364241 is a wasteful number, since it uses less digits than its factorization.

645000364241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104183743.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 645000364241 its reverse (142463000546), we get a palindrome (787463364787).

The spelling of 645000364241 in words is "six hundred forty-five billion, three hundred sixty-four thousand, two hundred forty-one".