650613642142 has 4 divisors (see below), whose sum is σ = 975920463216. Its totient is φ = 325306821070.

The previous prime is 650613642137. The next prime is 650613642143. The reversal of 650613642142 is 241246316056.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×650613642142² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 650613642095 and 650613642104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650613642143) 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 as a sum of consecutive naturals, namely, 162653410534 + ... + 162653410537.

It is an arithmetic number, because the mean of its divisors is an integer number (243980115804).

Almost surely, 2^650613642142 is an apocalyptic number.

650613642142 is a deficient number, since it is larger than the sum of its proper divisors (325306821074).

650613642142 is a wasteful number, since it uses less digits than its factorization.

650613642142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325306821073.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 650613642142 its reverse (241246316056), we get a palindrome (891859958198).

The spelling of 650613642142 in words is "six hundred fifty billion, six hundred thirteen million, six hundred forty-two thousand, one hundred forty-two".