42416578573 has 2 divisors, whose sum is σ = 42416578574. Its totient is φ = 42416578572.

The previous prime is 42416578543. The next prime is 42416578579. The reversal of 42416578573 is 37587561424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27996651684 + 14419926889 = 167322^2 + 120083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42416578573 is a prime.

It is a super-2 number, since 2×42416578573² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42416578573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42416578579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21208289286 + 21208289287.

It is an arithmetic number, because the mean of its divisors is an integer number (21208289287).

Almost surely, 2^42416578573 is an apocalyptic number.

It is an amenable number.

42416578573 is a deficient number, since it is larger than the sum of its proper divisors (1).

42416578573 is an equidigital number, since it uses as much as digits as its factorization.

42416578573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 52.

The spelling of 42416578573 in words is "forty-two billion, four hundred sixteen million, five hundred seventy-eight thousand, five hundred seventy-three".