42065718653 has 4 divisors (see below), whose sum is σ = 48075107040. Its totient is φ = 36056330268.

The previous prime is 42065718641. The next prime is 42065718701. The reversal of 42065718653 is 35681756024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42065718653 - 2¹² = 42065714557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42065718598 and 42065718607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42065718613) 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, 3004694183 + ... + 3004694196.

It is an arithmetic number, because the mean of its divisors is an integer number (12018776760).

Almost surely, 2^42065718653 is an apocalyptic number.

It is an amenable number.

42065718653 is a deficient number, since it is larger than the sum of its proper divisors (6009388387).

42065718653 is an equidigital number, since it uses as much as digits as its factorization.

42065718653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6009388386.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 42065718653 in words is "forty-two billion, sixty-five million, seven hundred eighteen thousand, six hundred fifty-three".