641364445013 has 4 divisors (see below), whose sum is σ = 641412801120. Its totient is φ = 641316088908.

The previous prime is 641364444971. The next prime is 641364445039. The reversal of 641364445013 is 310544463146.

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 not a de Polignac number, because 641364445013 - 2²⁴ = 641347667797 is a prime.

It is a super-2 number, since 2×641364445013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641364448013) 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, 24158153 + ... + 24184686.

It is an arithmetic number, because the mean of its divisors is an integer number (160353200280).

Almost surely, 2^641364445013 is an apocalyptic number.

It is an amenable number.

641364445013 is a deficient number, since it is larger than the sum of its proper divisors (48356107).

641364445013 is a wasteful number, since it uses less digits than its factorization.

641364445013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48356106.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 641364445013 in words is "six hundred forty-one billion, three hundred sixty-four million, four hundred forty-five thousand, thirteen".