641423848327 has 4 divisors (see below), whose sum is σ = 641550842856. Its totient is φ = 641296853800.

The previous prime is 641423848313. The next prime is 641423848363. The reversal of 641423848327 is 723848324146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723848324146 = 2 ⋅361924162073.

It is a cyclic number.

It is not a de Polignac number, because 641423848327 - 2³¹ = 639276364679 is a prime.

It is a super-2 number, since 2×641423848327² (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 (641423842327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63489688 + ... + 63499789.

It is an arithmetic number, because the mean of its divisors is an integer number (160387710714).

Almost surely, 2^641423848327 is an apocalyptic number.

641423848327 is a deficient number, since it is larger than the sum of its proper divisors (126994529).

641423848327 is a wasteful number, since it uses less digits than its factorization.

641423848327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126994528.

The product of its digits is 6193152, while the sum is 52.

The spelling of 641423848327 in words is "six hundred forty-one billion, four hundred twenty-three million, eight hundred forty-eight thousand, three hundred twenty-seven".