42635659345 has 4 divisors (see below), whose sum is σ = 51162791220. Its totient is φ = 34108527472.

The previous prime is 42635659343. The next prime is 42635659373. The reversal of 42635659345 is 54395653624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18661472449 + 23974186896 = 136607^2 + 154836^2 .

It is a cyclic number.

It is not a de Polignac number, because 42635659345 - 2¹ = 42635659343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42635659292 and 42635659301.

It is not an unprimeable number, because it can be changed into a prime (42635659343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4263565930 + ... + 4263565939.

It is an arithmetic number, because the mean of its divisors is an integer number (12790697805).

Almost surely, 2^42635659345 is an apocalyptic number.

It is an amenable number.

42635659345 is a deficient number, since it is larger than the sum of its proper divisors (8527131875).

42635659345 is an equidigital number, since it uses as much as digits as its factorization.

42635659345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527131874.

The product of its digits is 11664000, while the sum is 52.

The spelling of 42635659345 in words is "forty-two billion, six hundred thirty-five million, six hundred fifty-nine thousand, three hundred forty-five".