650421143423568 has 90 divisors (see below), whose sum is σ = 2000799062631642. Its totient is φ = 197097316183680.

The previous prime is 650421143423563. The next prime is 650421143423581. The reversal of 650421143423568 is 865324341124056.

It is a happy number.

650421143423568 is a `hidden beast` number, since 6 + 5 + 0 + 4 + 2 + 11 + 43 + 4 + 23 + 568 = 666.

650421143423568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 512873564410944 + 137547579012624 = 22646712^2 + 11728068^2 .

It is a super-3 number, since 3×650421143423568³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650421143423563) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18664501155 + ... + 18664536002.

Almost surely, 2^{650421143423568} is an apocalyptic number.

It is an amenable number.

650421143423568 is an abundant number, since it is smaller than the sum of its proper divisors (1350377919208074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650421143423568 is a wasteful number, since it uses less digits than its factorization.

650421143423568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37329037193 (or 37329037173 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 54.

The spelling of 650421143423568 in words is "six hundred fifty trillion, four hundred twenty-one billion, one hundred forty-three million, four hundred twenty-three thousand, five hundred sixty-eight".