42945705125524 has 12 divisors (see below), whose sum is σ = 75544388033044. Its totient is φ = 21361594258944.

The previous prime is 42945705125501. The next prime is 42945705125527. The reversal of 42945705125524 is 42552150754924.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9297120577924 + 33648584547600 = 3049118^2 + 5800740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42945705125527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27814575087 + ... + 27814576630.

Almost surely, 2^{42945705125524} is an apocalyptic number.

It is an amenable number.

42945705125524 is a deficient number, since it is larger than the sum of its proper divisors (32598682907520).

42945705125524 is a wasteful number, since it uses less digits than its factorization.

42945705125524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55629151914 (or 55629151912 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 55.

The spelling of 42945705125524 in words is "forty-two trillion, nine hundred forty-five billion, seven hundred five million, one hundred twenty-five thousand, five hundred twenty-four".