42643251050 has 24 divisors (see below), whose sum is σ = 79346150316. Its totient is φ = 17050912640.

The previous prime is 42643251019. The next prime is 42643251067. The reversal of 42643251050 is 5015234624.

It can be written as a sum of positive squares in 6 ways, for example, as 2655650089 + 39987600961 = 51533^2 + 199969^2 .

It is a super-2 number, since 2×42643251050² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42643250998 and 42643251016.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23699 + ... + 292998.

Almost surely, 2^42643251050 is an apocalyptic number.

42643251050 is a deficient number, since it is larger than the sum of its proper divisors (36702899266).

42643251050 is a wasteful number, since it uses less digits than its factorization.

42643251050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319402 (or 319397 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 42643251050 its reverse (5015234624), we get a palindrome (47658485674).

The spelling of 42643251050 in words is "forty-two billion, six hundred forty-three million, two hundred fifty-one thousand, fifty".