500000641369 has 4 divisors (see below), whose sum is σ = 500311782144. Its totient is φ = 499689500596.

The previous prime is 500000641271. The next prime is 500000641373. The reversal of 500000641369 is 963146000005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500000641369 is a prime.

It is a super-2 number, since 2×500000641369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500000644369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155567977 + ... + 155571190.

It is an arithmetic number, because the mean of its divisors is an integer number (125077945536).

Almost surely, 2^500000641369 is an apocalyptic number.

It is an amenable number.

500000641369 is a deficient number, since it is larger than the sum of its proper divisors (311140775).

500000641369 is a wasteful number, since it uses less digits than its factorization.

500000641369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311140774.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 500000641369 in words is "five hundred billion, six hundred forty-one thousand, three hundred sixty-nine".