42405024545 has 12 divisors (see below), whose sum is σ = 55101441276. Its totient is φ = 31314479040.

The previous prime is 42405024533. The next prime is 42405024593. The reversal of 42405024545 is 54542050424.

42405024545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 21627820096 + 20777204449 = 147064^2 + 144143^2 .

It is not a de Polignac number, because 42405024545 - 2⁸ = 42405024289 is a prime.

It is a super-2 number, since 2×42405024545² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25090886 + ... + 25092575.

It is an arithmetic number, because the mean of its divisors is an integer number (4591786773).

Almost surely, 2^42405024545 is an apocalyptic number.

It is an amenable number.

42405024545 is a deficient number, since it is larger than the sum of its proper divisors (12696416731).

42405024545 is a wasteful number, since it uses less digits than its factorization.

42405024545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50183492 (or 50183479 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 35.

Adding to 42405024545 its reverse (54542050424), we get a palindrome (96947074969).

The spelling of 42405024545 in words is "forty-two billion, four hundred five million, twenty-four thousand, five hundred forty-five".