42442142545 has 64 divisors (see below), whose sum is σ = 57082475520. Its totient is φ = 30037190400.

The previous prime is 42442142537. The next prime is 42442142593. The reversal of 42442142545 is 54524124424.

It is not a de Polignac number, because 42442142545 - 2³ = 42442142537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133886727 + ... + 133887043.

It is an arithmetic number, because the mean of its divisors is an integer number (891913680).

Almost surely, 2^42442142545 is an apocalyptic number.

It is an amenable number.

42442142545 is a deficient number, since it is larger than the sum of its proper divisors (14640332975).

42442142545 is a wasteful number, since it uses less digits than its factorization.

42442142545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its digits is 204800, while the sum is 37.

Adding to 42442142545 its reverse (54524124424), we get a palindrome (96966266969).

The spelling of 42442142545 in words is "forty-two billion, four hundred forty-two million, one hundred forty-two thousand, five hundred forty-five".