42142563345 has 32 divisors (see below), whose sum is σ = 67707574272. Its totient is φ = 22383076032.

The previous prime is 42142563343. The next prime is 42142563377. The reversal of 42142563345 is 54336524124.

It is not a de Polignac number, because 42142563345 - 2¹ = 42142563343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42142563343) 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 31 ways as a sum of consecutive naturals, for example, 3657864 + ... + 3669366.

It is an arithmetic number, because the mean of its divisors is an integer number (2115861696).

Almost surely, 2^42142563345 is an apocalyptic number.

It is an amenable number.

42142563345 is a deficient number, since it is larger than the sum of its proper divisors (25565010927).

42142563345 is a wasteful number, since it uses less digits than its factorization.

42142563345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12501.

The product of its digits is 345600, while the sum is 39.

The spelling of 42142563345 in words is "forty-two billion, one hundred forty-two million, five hundred sixty-three thousand, three hundred forty-five".