42005211635 has 4 divisors (see below), whose sum is σ = 50406253968. Its totient is φ = 33604169304.

The previous prime is 42005211623. The next prime is 42005211767. The reversal of 42005211635 is 53611250024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42005211635 is a prime.

It is a super-2 number, since 2×42005211635² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42005211598 and 42005211607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4200521159 + ... + 4200521168.

It is an arithmetic number, because the mean of its divisors is an integer number (12601563492).

Almost surely, 2^42005211635 is an apocalyptic number.

42005211635 is a deficient number, since it is larger than the sum of its proper divisors (8401042333).

42005211635 is an equidigital number, since it uses as much as digits as its factorization.

42005211635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8401042332.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 42005211635 its reverse (53611250024), we get a palindrome (95616461659).

The spelling of 42005211635 in words is "forty-two billion, five million, two hundred eleven thousand, six hundred thirty-five".