42257312543 has 8 divisors (see below), whose sum is σ = 42399392976. Its totient is φ = 42115460800.

The previous prime is 42257312497. The next prime is 42257312551. The reversal of 42257312543 is 34521375224.

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 42257312543 - 2⁶ = 42257312479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42257312497 and 42257312506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42257311543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317105 + ... + 430197.

It is an arithmetic number, because the mean of its divisors is an integer number (5299924122).

Almost surely, 2^42257312543 is an apocalyptic number.

42257312543 is a deficient number, since it is larger than the sum of its proper divisors (142080433).

42257312543 is a wasteful number, since it uses less digits than its factorization.

42257312543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114345.

The product of its digits is 201600, while the sum is 38.

Adding to 42257312543 its reverse (34521375224), we get a palindrome (76778687767).

The spelling of 42257312543 in words is "forty-two billion, two hundred fifty-seven million, three hundred twelve thousand, five hundred forty-three".