42105020515 has 8 divisors (see below), whose sum is σ = 50569179408. Its totient is φ = 33655246560.

The previous prime is 42105020483. The next prime is 42105020567. The reversal of 42105020515 is 51502050124.

42105020515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42105020515 - 2⁵ = 42105020483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42105020515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3589792 + ... + 3601501.

It is an arithmetic number, because the mean of its divisors is an integer number (6321147426).

Almost surely, 2^42105020515 is an apocalyptic number.

42105020515 is a deficient number, since it is larger than the sum of its proper divisors (8464158893).

42105020515 is a wasteful number, since it uses less digits than its factorization.

42105020515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7192469.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 42105020515 its reverse (51502050124), we get a palindrome (93607070639).

The spelling of 42105020515 in words is "forty-two billion, one hundred five million, twenty thousand, five hundred fifteen".