42520540328 has 16 divisors (see below), whose sum is σ = 91115443680. Its totient is φ = 18223088688.

The previous prime is 42520540327. The next prime is 42520540459. The reversal of 42520540328 is 82304502524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42520540327) 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, 379647626 + ... + 379647737.

It is an arithmetic number, because the mean of its divisors is an integer number (5694715230).

Almost surely, 2^42520540328 is an apocalyptic number.

It is an amenable number.

42520540328 is an abundant number, since it is smaller than the sum of its proper divisors (48594903352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42520540328 is a wasteful number, since it uses less digits than its factorization.

42520540328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759295376 (or 759295372 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 42520540328 in words is "forty-two billion, five hundred twenty million, five hundred forty thousand, three hundred twenty-eight".