42351505540 has 12 divisors (see below), whose sum is σ = 88938161676. Its totient is φ = 16940602208.

The previous prime is 42351505513. The next prime is 42351505577. The reversal of 42351505540 is 4550515324.

It can be written as a sum of positive squares in 2 ways, for example, as 19004276736 + 23347228804 = 137856^2 + 152798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42351505496 and 42351505505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058787619 + ... + 1058787658.

It is an arithmetic number, because the mean of its divisors is an integer number (7411513473).

Almost surely, 2^42351505540 is an apocalyptic number.

It is an amenable number.

42351505540 is an abundant number, since it is smaller than the sum of its proper divisors (46586656136).

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

42351505540 is a wasteful number, since it uses less digits than its factorization.

42351505540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117575286 (or 2117575284 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 42351505540 in words is "forty-two billion, three hundred fifty-one million, five hundred five thousand, five hundred forty".