42815986523683 has 4 divisors (see below), whose sum is σ = 42816006441880. Its totient is φ = 42815966605488.

The previous prime is 42815986523587. The next prime is 42815986523699. The reversal of 42815986523683 is 38632568951824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42815986523683 - 2⁹ = 42815986523171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42815986527683) 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, 6282210 + ... + 11184727.

It is an arithmetic number, because the mean of its divisors is an integer number (10704001610470).

Almost surely, 2^{42815986523683} is an apocalyptic number.

42815986523683 is a deficient number, since it is larger than the sum of its proper divisors (19918197).

42815986523683 is a wasteful number, since it uses less digits than its factorization.

42815986523683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19918196.

The product of its digits is 597196800, while the sum is 70.

The spelling of 42815986523683 in words is "forty-two trillion, eight hundred fifteen billion, nine hundred eighty-six million, five hundred twenty-three thousand, six hundred eighty-three".