641423505324146 has 24 divisors (see below), whose sum is σ = 988031834428716. Its totient is φ = 312294757325600.

The previous prime is 641423505324143. The next prime is 641423505324149.

641423505324146 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (641423505324143) and next prime (641423505324149).

It can be written as a sum of positive squares in 2 ways, for example, as 536623016265625 + 104800489058521 = 23165125^2 + 10237211^2 .

It is a super-2 number, since 2×641423505324146² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641423505324094 and 641423505324103.

It is not an unprimeable number, because it can be changed into a prime (641423505324143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367617305 + ... + 369357996.

Almost surely, 2^{641423505324146} is an apocalyptic number.

641423505324146 is a deficient number, since it is larger than the sum of its proper divisors (346608329104570).

641423505324146 is a wasteful number, since it uses less digits than its factorization.

641423505324146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736975594 (or 736975547 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 50.

It can be divided in two parts, 64142350 and 5324146, that added together give a palindrome (69466496).

The spelling of 641423505324146 in words is "six hundred forty-one trillion, four hundred twenty-three billion, five hundred five million, three hundred twenty-four thousand, one hundred forty-six".