42535123565 has 8 divisors (see below), whose sum is σ = 55682343648. Its totient is φ = 30934635280.

The previous prime is 42535123541. The next prime is 42535123567. The reversal of 42535123565 is 56532153524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42535123565 - 2²² = 42530929261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42535123567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386682887 + ... + 386682996.

It is an arithmetic number, because the mean of its divisors is an integer number (6960292956).

Almost surely, 2^42535123565 is an apocalyptic number.

It is an amenable number.

42535123565 is a deficient number, since it is larger than the sum of its proper divisors (13147220083).

42535123565 is a wasteful number, since it uses less digits than its factorization.

42535123565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773365899.

The product of its digits is 540000, while the sum is 41.

The spelling of 42535123565 in words is "forty-two billion, five hundred thirty-five million, one hundred twenty-three thousand, five hundred sixty-five".