42045125243 has 8 divisors (see below), whose sum is σ = 46067706480. Its totient is φ = 38055926880.

The previous prime is 42045125207. The next prime is 42045125257. The reversal of 42045125243 is 34252154024.

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

It is a cyclic number.

It is not a de Polignac number, because 42045125243 - 2²⁰ = 42044076667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42045125443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8343080 + ... + 8348117.

It is an arithmetic number, because the mean of its divisors is an integer number (5758463310).

Almost surely, 2^42045125243 is an apocalyptic number.

42045125243 is a deficient number, since it is larger than the sum of its proper divisors (4022581237).

42045125243 is a wasteful number, since it uses less digits than its factorization.

42045125243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16691437.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 42045125243 its reverse (34252154024), we get a palindrome (76297279267).

The spelling of 42045125243 in words is "forty-two billion, forty-five million, one hundred twenty-five thousand, two hundred forty-three".