42515316345 has 32 divisors (see below), whose sum is σ = 70994979072. Its totient is φ = 21685036032.

The previous prime is 42515316331. The next prime is 42515316373. The reversal of 42515316345 is 54361351524.

It is a happy number.

It is not a de Polignac number, because 42515316345 - 2⁴ = 42515316329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3380589 + ... + 3393141.

It is an arithmetic number, because the mean of its divisors is an integer number (2218593096).

Almost surely, 2^42515316345 is an apocalyptic number.

It is an amenable number.

42515316345 is a deficient number, since it is larger than the sum of its proper divisors (28479662727).

42515316345 is a wasteful number, since it uses less digits than its factorization.

42515316345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22401.

The product of its digits is 216000, while the sum is 39.

Adding to 42515316345 its reverse (54361351524), we get a palindrome (96876667869).

The spelling of 42515316345 in words is "forty-two billion, five hundred fifteen million, three hundred sixteen thousand, three hundred forty-five".