42335603617 has 2 divisors, whose sum is σ = 42335603618. Its totient is φ = 42335603616.

The previous prime is 42335603593. The next prime is 42335603621. The reversal of 42335603617 is 71630653324.

42335603617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35526218256 + 6809385361 = 188484^2 + 82519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42335603617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42335603617.

It is not a weakly prime, because it can be changed into another prime (42335603647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21167801808 + 21167801809.

It is an arithmetic number, because the mean of its divisors is an integer number (21167801809).

Almost surely, 2^42335603617 is an apocalyptic number.

It is an amenable number.

42335603617 is a deficient number, since it is larger than the sum of its proper divisors (1).

42335603617 is an equidigital number, since it uses as much as digits as its factorization.

42335603617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 40.

The spelling of 42335603617 in words is "forty-two billion, three hundred thirty-five million, six hundred three thousand, six hundred seventeen".