42223530641 has 2 divisors, whose sum is σ = 42223530642. Its totient is φ = 42223530640.

The previous prime is 42223530637. The next prime is 42223530731. The reversal of 42223530641 is 14603532224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32834889616 + 9388641025 = 181204^2 + 96895^2 .

It is a cyclic number.

It is not a de Polignac number, because 42223530641 - 2² = 42223530637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42223530598 and 42223530607.

It is not a weakly prime, because it can be changed into another prime (42223530631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111765320 + 21111765321.

It is an arithmetic number, because the mean of its divisors is an integer number (21111765321).

Almost surely, 2^42223530641 is an apocalyptic number.

It is an amenable number.

42223530641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42223530641 is an equidigital number, since it uses as much as digits as its factorization.

42223530641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 42223530641 in words is "forty-two billion, two hundred twenty-three million, five hundred thirty thousand, six hundred forty-one".